64099386 has 24 divisors (see below), whose sum is σ = 149565780. Its totient is φ = 19722816.

The previous prime is 64099381. The next prime is 64099393. The reversal of 64099386 is 68399046.

It can be written as a sum of positive squares in 2 ways, for example, as 62489025 + 1610361 = 7905^2 + 1269^2 .

It is not an unprimeable number, because it can be changed into a prime (64099381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136731 + ... + 137198.

Almost surely, 2^64099386 is an apocalyptic number.

64099386 is an abundant number, since it is smaller than the sum of its proper divisors (85466394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64099386 is a wasteful number, since it uses less digits than its factorization.

64099386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273950 (or 273947 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 64099386 is about 8006.2092153528. The cubic root of 64099386 is about 400.2069470805.

The spelling of 64099386 in words is "sixty-four million, ninety-nine thousand, three hundred eighty-six".