76620733 has 4 divisors (see below), whose sum is σ = 87566560. Its totient is φ = 65674908.

The previous prime is 76620701. The next prime is 76620743. The reversal of 76620733 is 33702667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76620733 - 2⁵ = 76620701 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 (76620743) 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, 5472903 + ... + 5472916.

It is an arithmetic number, because the mean of its divisors is an integer number (21891640).

Almost surely, 2^76620733 is an apocalyptic number.

It is an amenable number.

76620733 is a deficient number, since it is larger than the sum of its proper divisors (10945827).

76620733 is a wasteful number, since it uses less digits than its factorization.

76620733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10945826.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 76620733 is about 8753.3269675021. The cubic root of 76620733 is about 424.7324415133.

The spelling of 76620733 in words is "seventy-six million, six hundred twenty thousand, seven hundred thirty-three".