78971298 has 32 divisors (see below), whose sum is σ = 180786816. Its totient is φ = 22528128.

The previous prime is 78971281. The next prime is 78971407. The reversal of 78971298 is 89217987.

It is a self number, because there is not a number n which added to its sum of digits gives 78971298.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39040 + ... + 41012.

It is an arithmetic number, because the mean of its divisors is an integer number (5649588).

Almost surely, 2^78971298 is an apocalyptic number.

78971298 is an abundant number, since it is smaller than the sum of its proper divisors (101815518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78971298 is a wasteful number, since it uses less digits than its factorization.

78971298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938.

The product of its digits is 508032, while the sum is 51.

The square root of 78971298 is about 8886.5796569884. The cubic root of 78971298 is about 429.0320719770.

The spelling of 78971298 in words is "seventy-eight million, nine hundred seventy-one thousand, two hundred ninety-eight".