76672417 has 4 divisors (see below), whose sum is σ = 76704580. Its totient is φ = 76640256.

The previous prime is 76672381. The next prime is 76672441. The reversal of 76672417 is 71427667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43678881 + 32993536 = 6609^2 + 5744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76672417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76672417.

It is not an unprimeable number, because it can be changed into a prime (76672457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12192 + ... + 17377.

It is an arithmetic number, because the mean of its divisors is an integer number (19176145).

Almost surely, 2^76672417 is an apocalyptic number.

It is an amenable number.

76672417 is a deficient number, since it is larger than the sum of its proper divisors (32163).

76672417 is a wasteful number, since it uses less digits than its factorization.

76672417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32162.

The product of its digits is 98784, while the sum is 40.

The square root of 76672417 is about 8756.2787187252. The cubic root of 76672417 is about 424.8279201854.

The spelling of 76672417 in words is "seventy-six million, six hundred seventy-two thousand, four hundred seventeen".