72676769 has 8 divisors (see below), whose sum is σ = 81427008. Its totient is φ = 64283760.

The previous prime is 72676763. The next prime is 72676771. The reversal of 72676769 is 96767627.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72676769 is a prime.

It is a super-2 number, since 2×72676769² = 10563825504558722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72676763) 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 7 ways as a sum of consecutive naturals, for example, 88877 + ... + 89690.

It is an arithmetic number, because the mean of its divisors is an integer number (10178376).

Almost surely, 2^72676769 is an apocalyptic number.

It is an amenable number.

72676769 is a deficient number, since it is larger than the sum of its proper divisors (8750239).

72676769 is a wasteful number, since it uses less digits than its factorization.

72676769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178615.

The product of its digits is 1333584, while the sum is 50.

The square root of 72676769 is about 8525.0670965102. The cubic root of 72676769 is about 417.3161613078.

The spelling of 72676769 in words is "seventy-two million, six hundred seventy-six thousand, seven hundred sixty-nine".