76367721 has 8 divisors (see below), whose sum is σ = 102357504. Its totient is φ = 50644880.

The previous prime is 76367713. The next prime is 76367729. The reversal of 76367721 is 12776367.

It is an interprime number because it is at equal distance from previous prime (76367713) and next prime (76367729).

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

It is a cyclic number.

It is not a de Polignac number, because 76367721 - 2³ = 76367713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76367721.

It is not an unprimeable number, because it can be changed into a prime (76367729) 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, 66066 + ... + 67211.

It is an arithmetic number, because the mean of its divisors is an integer number (12794688).

Almost surely, 2^76367721 is an apocalyptic number.

It is an amenable number.

76367721 is a deficient number, since it is larger than the sum of its proper divisors (25989783).

76367721 is a wasteful number, since it uses less digits than its factorization.

76367721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133471.

The product of its digits is 74088, while the sum is 39.

The square root of 76367721 is about 8738.8626834388. The cubic root of 76367721 is about 424.2644180299.

The spelling of 76367721 in words is "seventy-six million, three hundred sixty-seven thousand, seven hundred twenty-one".