64497746 has 8 divisors (see below), whose sum is σ = 96942000. Its totient is φ = 32183748.

The previous prime is 64497743. The next prime is 64497757. The reversal of 64497746 is 64779446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64497746.

It is not an unprimeable number, because it can be changed into a prime (64497743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31316 + ... + 33311.

It is an arithmetic number, because the mean of its divisors is an integer number (12117750).

Almost surely, 2^64497746 is an apocalyptic number.

64497746 is a deficient number, since it is larger than the sum of its proper divisors (32444254).

64497746 is a wasteful number, since it uses less digits than its factorization.

64497746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65128.

The product of its digits is 1016064, while the sum is 47.

The square root of 64497746 is about 8031.0488729680. The cubic root of 64497746 is about 401.0342941174.

The spelling of 64497746 in words is "sixty-four million, four hundred ninety-seven thousand, seven hundred forty-six".