100878946 has 48 divisors (see below), whose sum is σ = 185270976. Its totient is φ = 41023584.

The previous prime is 100878941. The next prime is 100878959. The reversal of 100878946 is 649878001.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (100878941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155595 + ... + 156241.

It is an arithmetic number, because the mean of its divisors is an integer number (3859812).

Almost surely, 2^100878946 is an apocalyptic number.

100878946 is a deficient number, since it is larger than the sum of its proper divisors (84392030).

100878946 is a wasteful number, since it uses less digits than its factorization.

100878946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 100878946 is about 10043.8511538155. The cubic root of 100878946 is about 465.5148204150.

The spelling of 100878946 in words is "one hundred million, eight hundred seventy-eight thousand, nine hundred forty-six".