64266437 has 8 divisors (see below), whose sum is σ = 65769600. Its totient is φ = 62797452.

The previous prime is 64266413. The next prime is 64266457. The reversal of 64266437 is 73466246.

It is not a de Polignac number, because 64266437 - 2¹⁰ = 64265413 is a prime.

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 64266437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64266457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103514 + ... + 104132.

It is an arithmetic number, because the mean of its divisors is an integer number (8221200).

Almost surely, 2^64266437 is an apocalyptic number.

It is an amenable number.

64266437 is a deficient number, since it is larger than the sum of its proper divisors (1503163).

64266437 is an frugal number, since it uses more digits than its factorization.

64266437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 666 counting only the distinct ones).

The product of its digits is 145152, while the sum is 38.

The square root of 64266437 is about 8016.6350172625. The cubic root of 64266437 is about 400.5543085835.

The spelling of 64266437 in words is "sixty-four million, two hundred sixty-six thousand, four hundred thirty-seven".