64806494 has 4 divisors (see below), whose sum is σ = 97209744. Its totient is φ = 32403246.

The previous prime is 64806493. The next prime is 64806509. The reversal of 64806494 is 49460846.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64806493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16201622 + ... + 16201625.

It is an arithmetic number, because the mean of its divisors is an integer number (24302436).

Almost surely, 2^64806494 is an apocalyptic number.

64806494 is a deficient number, since it is larger than the sum of its proper divisors (32403250).

64806494 is a wasteful number, since it uses less digits than its factorization.

64806494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32403249.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 64806494 is about 8050.2480707119. The cubic root of 64806494 is about 401.6731871862.

The spelling of 64806494 in words is "sixty-four million, eight hundred six thousand, four hundred ninety-four".