76956997 has 8 divisors (see below), whose sum is σ = 83145944. Its totient is φ = 70806528.

The previous prime is 76956991. The next prime is 76957009. The reversal of 76956997 is 79965967.

It can be written as a sum of positive squares in 4 ways, for example, as 1718721 + 75238276 = 1311^2 + 8674^2 .

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

It is not a de Polignac number, because 76956997 - 2³ = 76956989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76956991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5388 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (10393243).

Almost surely, 2^76956997 is an apocalyptic number.

It is an amenable number.

76956997 is a deficient number, since it is larger than the sum of its proper divisors (6188947).

76956997 is a wasteful number, since it uses less digits than its factorization.

76956997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19239.

The product of its digits is 6429780, while the sum is 58.

The square root of 76956997 is about 8772.5137218473. The cubic root of 76956997 is about 425.3528732524.

The spelling of 76956997 in words is "seventy-six million, nine hundred fifty-six thousand, nine hundred ninety-seven".