64725486 has 32 divisors (see below), whose sum is σ = 151096320. Its totient is φ = 18098976.

The previous prime is 64725461. The next prime is 64725491. The reversal of 64725486 is 68452746.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14421 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (4721760).

Almost surely, 2^64725486 is an apocalyptic number.

64725486 is an abundant number, since it is smaller than the sum of its proper divisors (86370834).

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

64725486 is a wasteful number, since it uses less digits than its factorization.

64725486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32848.

The product of its digits is 322560, while the sum is 42.

The square root of 64725486 is about 8045.2150996726. The cubic root of 64725486 is about 401.5057538178.

The spelling of 64725486 in words is "sixty-four million, seven hundred twenty-five thousand, four hundred eighty-six".