76621630 has 32 divisors (see below), whose sum is σ = 140784480. Its totient is φ = 30019200.

The previous prime is 76621627. The next prime is 76621637. The reversal of 76621630 is 3612667.

It is a junction number, because it is equal to n+sod(n) for n = 76621592 and 76621601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76621637) 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 15 ways as a sum of consecutive naturals, for example, 107716 + ... + 108424.

It is an arithmetic number, because the mean of its divisors is an integer number (4399515).

Almost surely, 2^76621630 is an apocalyptic number.

76621630 is a deficient number, since it is larger than the sum of its proper divisors (64162850).

76621630 is a wasteful number, since it uses less digits than its factorization.

76621630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 76621630 is about 8753.3782050132. The cubic root of 76621630 is about 424.7340989564.

The spelling of 76621630 in words is "seventy-six million, six hundred twenty-one thousand, six hundred thirty".