77969467 has 2 divisors, whose sum is σ = 77969468. Its totient is φ = 77969466.

The previous prime is 77969459. The next prime is 77969477. The reversal of 77969467 is 76496977.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77969467 - 2³ = 77969459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77969477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38984733 + 38984734.

It is an arithmetic number, because the mean of its divisors is an integer number (38984734).

Almost surely, 2^77969467 is an apocalyptic number.

77969467 is a deficient number, since it is larger than the sum of its proper divisors (1).

77969467 is an equidigital number, since it uses as much as digits as its factorization.

77969467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 55.

The square root of 77969467 is about 8830.0321063969. The cubic root of 77969467 is about 427.2101100016.

The spelling of 77969467 in words is "seventy-seven million, nine hundred sixty-nine thousand, four hundred sixty-seven".