64498812 has 24 divisors (see below), whose sum is σ = 171997056. Its totient is φ = 18428208.

The previous prime is 64498801. The next prime is 64498843. The reversal of 64498812 is 21889446.

It is a super-2 number, since 2×64498812² = 8320193498822688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383838 + ... + 384005.

It is an arithmetic number, because the mean of its divisors is an integer number (7166544).

Almost surely, 2^64498812 is an apocalyptic number.

It is an amenable number.

64498812 is an abundant number, since it is smaller than the sum of its proper divisors (107498244).

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

64498812 is a wasteful number, since it uses less digits than its factorization.

64498812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767857 (or 767855 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 64498812 is about 8031.1152401145. The cubic root of 64498812 is about 401.0365034980.

The spelling of 64498812 in words is "sixty-four million, four hundred ninety-eight thousand, eight hundred twelve".