64729485 has 24 divisors (see below), whose sum is σ = 118104480. Its totient is φ = 32704992.

The previous prime is 64729477. The next prime is 64729501. The reversal of 64729485 is 58492746.

It is a happy number.

It is not a de Polignac number, because 64729485 - 2³ = 64729477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64729485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36999 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (4921020).

Almost surely, 2^64729485 is an apocalyptic number.

It is an amenable number.

64729485 is a deficient number, since it is larger than the sum of its proper divisors (53374995).

64729485 is a wasteful number, since it uses less digits than its factorization.

64729485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75737 (or 75734 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 64729485 is about 8045.4636286543. The cubic root of 64729485 is about 401.5140225259.

The spelling of 64729485 in words is "sixty-four million, seven hundred twenty-nine thousand, four hundred eighty-five".