39630961 has 8 divisors (see below), whose sum is σ = 42094944. Its totient is φ = 37181760.

The previous prime is 39630919. The next prime is 39630971. The reversal of 39630961 is 16903693.

39630961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39630961 - 2¹¹ = 39628913 is a prime.

It is a super-2 number, since 2×39630961² = 3141226139567042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39630961.

It is not an unprimeable number, because it can be changed into a prime (39630901) 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, 2106 + ... + 9148.

It is an arithmetic number, because the mean of its divisors is an integer number (5261868).

Almost surely, 2^39630961 is an apocalyptic number.

It is an amenable number.

39630961 is a deficient number, since it is larger than the sum of its proper divisors (2463983).

39630961 is a wasteful number, since it uses less digits than its factorization.

39630961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 39630961 is about 6295.3126213080. The cubic root of 39630961 is about 340.9401918368.

The spelling of 39630961 in words is "thirty-nine million, six hundred thirty thousand, nine hundred sixty-one".