78955898 has 8 divisors (see below), whose sum is σ = 135352992. Its totient is φ = 33838236.

The previous prime is 78955897. The next prime is 78955901. The reversal of 78955898 is 89855987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78955897) 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, 2819840 + ... + 2819867.

It is an arithmetic number, because the mean of its divisors is an integer number (16919124).

Almost surely, 2^78955898 is an apocalyptic number.

78955898 is a deficient number, since it is larger than the sum of its proper divisors (56397094).

78955898 is a wasteful number, since it uses less digits than its factorization.

78955898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639716.

The product of its digits is 7257600, while the sum is 59.

The square root of 78955898 is about 8885.7131396416. The cubic root of 78955898 is about 429.0041819984.

The spelling of 78955898 in words is "seventy-eight million, nine hundred fifty-five thousand, eight hundred ninety-eight".