64116387 has 36 divisors (see below), whose sum is σ = 100800840. Its totient is φ = 40275576.

The previous prime is 64116383. The next prime is 64116427. The reversal of 64116387 is 78361146.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

64116387 is a `hidden beast` number, since 6 + 4 + 11 + 638 + 7 = 666.

It is not a de Polignac number, because 64116387 - 2² = 64116383 is a prime.

It is a super-2 number, since 2×64116387² = 8221822163867538, which contains 22 as substring.

Its product of digits (24192) is a multiple of the sum of its prime factors (189).

It is not an unprimeable number, because it can be changed into a prime (64116383) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 956928 + ... + 956994.

Almost surely, 2^64116387 is an apocalyptic number.

64116387 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

64116387 is a deficient number, since it is larger than the sum of its proper divisors (36684453).

64116387 is an equidigital number, since it uses as much as digits as its factorization.

64116387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 93 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 64116387 is about 8007.2708833909. The cubic root of 64116387 is about 400.2423260822.

The spelling of 64116387 in words is "sixty-four million, one hundred sixteen thousand, three hundred eighty-seven".