78929051 has 2 divisors, whose sum is σ = 78929052. Its totient is φ = 78929050.

The previous prime is 78929041. The next prime is 78929093. The reversal of 78929051 is 15092987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78929051 - 2²⁶ = 11820187 is a prime.

It is not a weakly prime, because it can be changed into another prime (78929041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39464525 + 39464526.

It is an arithmetic number, because the mean of its divisors is an integer number (39464526).

Almost surely, 2^78929051 is an apocalyptic number.

78929051 is a deficient number, since it is larger than the sum of its proper divisors (1).

78929051 is an equidigital number, since it uses as much as digits as its factorization.

78929051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 78929051 is about 8884.2023277276. The cubic root of 78929051 is about 428.9555523996.

The spelling of 78929051 in words is "seventy-eight million, nine hundred twenty-nine thousand, fifty-one".