100947473 has 4 divisors (see below), whose sum is σ = 110124528. Its totient is φ = 91770420.

The previous prime is 100947467. The next prime is 100947481. The reversal of 100947473 is 374749001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100947473 - 2⁶ = 100947409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100947373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4588511 + ... + 4588532.

It is an arithmetic number, because the mean of its divisors is an integer number (27531132).

Almost surely, 2^100947473 is an apocalyptic number.

It is an amenable number.

100947473 is a deficient number, since it is larger than the sum of its proper divisors (9177055).

100947473 is an equidigital number, since it uses as much as digits as its factorization.

100947473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177054.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 100947473 is about 10047.2619653316. The cubic root of 100947473 is about 465.6202045240.

The spelling of 100947473 in words is "one hundred million, nine hundred forty-seven thousand, four hundred seventy-three".