64673245 has 32 divisors (see below), whose sum is σ = 100558080. Its totient is φ = 38776320.

The previous prime is 64673243. The next prime is 64673341. The reversal of 64673245 is 54237646.

64673245 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 64673245 - 2¹ = 64673243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64673243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4905 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (3142440).

Almost surely, 2^64673245 is an apocalyptic number.

64673245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64673245 is a deficient number, since it is larger than the sum of its proper divisors (35884835).

64673245 is a wasteful number, since it uses less digits than its factorization.

64673245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525.

The product of its digits is 120960, while the sum is 37.

The square root of 64673245 is about 8041.9677318427. The cubic root of 64673245 is about 401.3977041194.

The spelling of 64673245 in words is "sixty-four million, six hundred seventy-three thousand, two hundred forty-five".