78855098 has 16 divisors (see below), whose sum is σ = 135319680. Its totient is φ = 33760176.

The previous prime is 78855071. The next prime is 78855137. The reversal of 78855098 is 89055887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14915 + ... + 19497.

It is an arithmetic number, because the mean of its divisors is an integer number (8457480).

Almost surely, 2^78855098 is an apocalyptic number.

78855098 is a deficient number, since it is larger than the sum of its proper divisors (56464582).

78855098 is a wasteful number, since it uses less digits than its factorization.

78855098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 806400, while the sum is 50.

The square root of 78855098 is about 8880.0393017148. The cubic root of 78855098 is about 428.8215397968.

The spelling of 78855098 in words is "seventy-eight million, eight hundred fifty-five thousand, ninety-eight".