64876740 has 24 divisors (see below), whose sum is σ = 181655040. Its totient is φ = 17300448.

The previous prime is 64876739. The next prime is 64876751. The reversal of 64876740 is 4767846.

It is a junction number, because it is equal to n+sod(n) for n = 64876692 and 64876701.

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, 540580 + ... + 540699.

It is an arithmetic number, because the mean of its divisors is an integer number (7568960).

Almost surely, 2^64876740 is an apocalyptic number.

64876740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64876740 is an abundant number, since it is smaller than the sum of its proper divisors (116778300).

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

64876740 is a wasteful number, since it uses less digits than its factorization.

64876740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081291 (or 1081289 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 64876740 is about 8054.6098601981. The cubic root of 64876740 is about 401.8182639337.

The spelling of 64876740 in words is "sixty-four million, eight hundred seventy-six thousand, seven hundred forty".