64530036 has 18 divisors (see below), whose sum is σ = 163117682. Its totient is φ = 21510000.

The previous prime is 64530031. The next prime is 64530047. The reversal of 64530036 is 63003546.

It can be written as a sum of positive squares in only one way, i.e., 63297936 + 1232100 = 7956^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×64530036² = 8328251092322592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64529991 and 64530009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64530031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896215 + ... + 896286.

Almost surely, 2^64530036 is an apocalyptic number.

It is an amenable number.

64530036 is an abundant number, since it is smaller than the sum of its proper divisors (98587646).

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

64530036 is a wasteful number, since it uses less digits than its factorization.

64530036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792511 (or 1792506 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 64530036 is about 8033.0589441383. The cubic root of 64530036 is about 401.1012072411.

The spelling of 64530036 in words is "sixty-four million, five hundred thirty thousand, thirty-six".