64814838 has 32 divisors (see below), whose sum is σ = 141799680. Its totient is φ = 19587360.

The previous prime is 64814819. The next prime is 64814899. The reversal of 64814838 is 83841846.

It is a self number, because there is not a number n which added to its sum of digits gives 64814838.

It is a congruent number.

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, 27856 + ... + 30092.

It is an arithmetic number, because the mean of its divisors is an integer number (4431240).

Almost surely, 2^64814838 is an apocalyptic number.

64814838 is an abundant number, since it is smaller than the sum of its proper divisors (76984842).

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

64814838 is a wasteful number, since it uses less digits than its factorization.

64814838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692.

The product of its digits is 147456, while the sum is 42.

The square root of 64814838 is about 8050.7662989308. The cubic root of 64814838 is about 401.6904252593.

The spelling of 64814838 in words is "sixty-four million, eight hundred fourteen thousand, eight hundred thirty-eight".