64969437 has 16 divisors (see below), whose sum is σ = 94167360. Its totient is φ = 39604992.

The previous prime is 64969391. The next prime is 64969441. The reversal of 64969437 is 73496946.

It is not a de Polignac number, because 64969437 - 2¹⁰ = 64968413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64969477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3612 + ... + 11957.

It is an arithmetic number, because the mean of its divisors is an integer number (5885460).

Almost surely, 2^64969437 is an apocalyptic number.

It is an amenable number.

64969437 is a deficient number, since it is larger than the sum of its proper divisors (29197923).

64969437 is a wasteful number, since it uses less digits than its factorization.

64969437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15692.

The product of its digits is 979776, while the sum is 48.

The square root of 64969437 is about 8060.3620886409. The cubic root of 64969437 is about 402.0095478042.

The spelling of 64969437 in words is "sixty-four million, nine hundred sixty-nine thousand, four hundred thirty-seven".