64876734 has 48 divisors (see below), whose sum is σ = 156135600. Its totient is φ = 19959264.

The previous prime is 64876727. The next prime is 64876739. The reversal of 64876734 is 43767846.

It is a super-2 number, since 2×64876734² = 8417981229013512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64876734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64876739) 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, 5572 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (3252825).

Almost surely, 2^64876734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64876734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78067800).

64876734 is an abundant number, since it is smaller than the sum of its proper divisors (91258866).

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

64876734 is a wasteful number, since it uses less digits than its factorization.

64876734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7127 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 64876734 is about 8054.6094877405. The cubic root of 64876734 is about 401.8182515466.

The spelling of 64876734 in words is "sixty-four million, eight hundred seventy-six thousand, seven hundred thirty-four".