39964953 has 16 divisors (see below), whose sum is σ = 61107200. Its totient is φ = 22759056.

The previous prime is 39964949. The next prime is 39964997. The reversal of 39964953 is 35946993.

It is a happy number.

It is not a de Polignac number, because 39964953 - 2² = 39964949 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39964753) 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, 3348 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (3819200).

Almost surely, 2^39964953 is an apocalyptic number.

It is an amenable number.

39964953 is a deficient number, since it is larger than the sum of its proper divisors (21142247).

39964953 is a wasteful number, since it uses less digits than its factorization.

39964953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516.

The product of its digits is 787320, while the sum is 48.

The square root of 39964953 is about 6321.7840045354. The cubic root of 39964953 is about 341.8952776046.

The spelling of 39964953 in words is "thirty-nine million, nine hundred sixty-four thousand, nine hundred fifty-three".