64893892 has 48 divisors (see below), whose sum is σ = 137482240. Its totient is φ = 26181792.

The previous prime is 64893877. The next prime is 64893901. The reversal of 64893892 is 29839846.

It is a super-2 number, since 2×64893892² = 8422434437815328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118363 + ... + 118909.

Almost surely, 2^64893892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64893892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68741120).

64893892 is an abundant number, since it is smaller than the sum of its proper divisors (72588348).

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

64893892 is a wasteful number, since it uses less digits than its factorization.

64893892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 798 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 64893892 is about 8055.6745217269. The cubic root of 64893892 is about 401.8536714855.

The spelling of 64893892 in words is "sixty-four million, eight hundred ninety-three thousand, eight hundred ninety-two".