78862470 has 16 divisors (see below), whose sum is σ = 189270000. Its totient is φ = 21029984.

The previous prime is 78862453. The next prime is 78862489. The reversal of 78862470 is 7426887.

It is a congruent number.

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, 1314345 + ... + 1314404.

It is an arithmetic number, because the mean of its divisors is an integer number (11829375).

Almost surely, 2^78862470 is an apocalyptic number.

78862470 is an abundant number, since it is smaller than the sum of its proper divisors (110407530).

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

78862470 is a wasteful number, since it uses less digits than its factorization.

78862470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628759.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 78862470 is about 8880.4543802668. The cubic root of 78862470 is about 428.8349025933.

The spelling of 78862470 in words is "seventy-eight million, eight hundred sixty-two thousand, four hundred seventy".