78970938 has 8 divisors (see below), whose sum is σ = 157941888. Its totient is φ = 26323644.

The previous prime is 78970909. The next prime is 78970939. The reversal of 78970938 is 83907987.

It is a happy number.

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

78970938 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78970939) 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, 6580906 + ... + 6580917.

It is an arithmetic number, because the mean of its divisors is an integer number (19742736).

Almost surely, 2^78970938 is an apocalyptic number.

78970938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78970938 is a wasteful number, since it uses less digits than its factorization.

78970938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13161828.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 78970938 is about 8886.5594017032. The cubic root of 78970938 is about 429.0314200448.

The spelling of 78970938 in words is "seventy-eight million, nine hundred seventy thousand, nine hundred thirty-eight".