64230985 has 24 divisors (see below), whose sum is σ = 95394240. Its totient is φ = 40652352.

The previous prime is 64230967. The next prime is 64230989. The reversal of 64230985 is 58903246.

It is not a de Polignac number, because 64230985 - 2¹⁵ = 64198217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64230989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486 + ... + 11344.

It is an arithmetic number, because the mean of its divisors is an integer number (3974760).

Almost surely, 2^64230985 is an apocalyptic number.

64230985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64230985 is a deficient number, since it is larger than the sum of its proper divisors (31163255).

64230985 is a wasteful number, since it uses less digits than its factorization.

64230985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10897 (or 10884 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64230985 is about 8014.4235600572. The cubic root of 64230985 is about 400.4806409793.

The spelling of 64230985 in words is "sixty-four million, two hundred thirty thousand, nine hundred eighty-five".