76630385 has 16 divisors (see below), whose sum is σ = 99915984. Its totient is φ = 56082432.

The previous prime is 76630361. The next prime is 76630387. The reversal of 76630385 is 58303667.

It can be written as a sum of positive squares in 8 ways, for example, as 18809569 + 57820816 = 4337^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 76630385 - 2⁸ = 76630129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76630387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2129 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (6244749).

Almost surely, 2^76630385 is an apocalyptic number.

It is an amenable number.

76630385 is a deficient number, since it is larger than the sum of its proper divisors (23285599).

76630385 is a wasteful number, since it uses less digits than its factorization.

76630385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10564.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 76630385 is about 8753.8782833668. The cubic root of 76630385 is about 424.7502754391.

The spelling of 76630385 in words is "seventy-six million, six hundred thirty thousand, three hundred eighty-five".