78830697 has 16 divisors (see below), whose sum is σ = 114893568. Its totient is φ = 47680080.

The previous prime is 78830693. The next prime is 78830707. The reversal of 78830697 is 79603887.

It is not a de Polignac number, because 78830697 - 2² = 78830693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78830693) 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, 16458 + ... + 20700.

It is an arithmetic number, because the mean of its divisors is an integer number (7180848).

Almost surely, 2^78830697 is an apocalyptic number.

It is an amenable number.

78830697 is a deficient number, since it is larger than the sum of its proper divisors (36062871).

78830697 is a wasteful number, since it uses less digits than its factorization.

78830697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 78830697 is about 8878.6652713119. The cubic root of 78830697 is about 428.7773035790. Note that the first 3 decimals are identical.

The spelling of 78830697 in words is "seventy-eight million, eight hundred thirty thousand, six hundred ninety-seven".