78900284 has 6 divisors (see below), whose sum is σ = 138075504. Its totient is φ = 39450140.

The previous prime is 78900251. The next prime is 78900307. The reversal of 78900284 is 48200987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9862532 + ... + 9862539.

It is an arithmetic number, because the mean of its divisors is an integer number (23012584).

Almost surely, 2^78900284 is an apocalyptic number.

It is an amenable number.

78900284 is a deficient number, since it is larger than the sum of its proper divisors (59175220).

78900284 is a wasteful number, since it uses less digits than its factorization.

78900284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19725075 (or 19725073 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 78900284 is about 8882.5831828359. The cubic root of 78900284 is about 428.9034327484.

The spelling of 78900284 in words is "seventy-eight million, nine hundred thousand, two hundred eighty-four".