100394775 has 96 divisors (see below), whose sum is σ = 210611520. Its totient is φ = 46448640.

The previous prime is 100394719. The next prime is 100394831. The reversal of 100394775 is 577493001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100394719) and next prime (100394831).

It is not a de Polignac number, because 100394775 - 2⁶ = 100394711 is a prime.

It is a super-2 number, since 2×100394775² = 20158221694601250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 148839 + ... + 149511.

It is an arithmetic number, because the mean of its divisors is an integer number (2193870).

Almost surely, 2^100394775 is an apocalyptic number.

100394775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100394775 is an abundant number, since it is smaller than the sum of its proper divisors (110216745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100394775 is a wasteful number, since it uses less digits than its factorization.

100394775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 100394775 is about 10019.7193074457. The cubic root of 100394775 is about 464.7688757755.

The spelling of 100394775 in words is "one hundred million, three hundred ninety-four thousand, seven hundred seventy-five".