77310897 has 8 divisors (see below), whose sum is σ = 106635840. Its totient is φ = 49763280.

The previous prime is 77310887. The next prime is 77310913. The reversal of 77310897 is 79801377.

It is a happy number.

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

It is not a de Polignac number, because 77310897 - 2⁷ = 77310769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77310847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444229 + ... + 444402.

It is an arithmetic number, because the mean of its divisors is an integer number (13329480).

Almost surely, 2^77310897 is an apocalyptic number.

It is an amenable number.

77310897 is a deficient number, since it is larger than the sum of its proper divisors (29324943).

77310897 is a wasteful number, since it uses less digits than its factorization.

77310897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888663.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 77310897 is about 8792.6615424455. The cubic root of 77310897 is about 426.0038957963.

The spelling of 77310897 in words is "seventy-seven million, three hundred ten thousand, eight hundred ninety-seven".