78969027 has 16 divisors (see below), whose sum is σ = 108586368. Its totient is φ = 51018240.

The previous prime is 78969017. The next prime is 78969031. The reversal of 78969027 is 72096987.

It is not a de Polignac number, because 78969027 - 2²² = 74774723 is a prime.

It is a super-2 number, since 2×78969027² = 12472214450653458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78969017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14563 + ... + 19235.

It is an arithmetic number, because the mean of its divisors is an integer number (6786648).

Almost surely, 2^78969027 is an apocalyptic number.

78969027 is a deficient number, since it is larger than the sum of its proper divisors (29617341).

78969027 is a wasteful number, since it uses less digits than its factorization.

78969027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 78969027 is about 8886.4518791248. The cubic root of 78969027 is about 429.0279593386.

The spelling of 78969027 in words is "seventy-eight million, nine hundred sixty-nine thousand, twenty-seven".