42664713 has 64 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 20385792.

The previous prime is 42664697. The next prime is 42664733. The reversal of 42664713 is 31746624.

It is a happy number.

It is not a de Polignac number, because 42664713 - 2⁴ = 42664697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42664733) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134431 + ... + 134747.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 2^42664713 is an apocalyptic number.

It is an amenable number.

42664713 is a deficient number, since it is larger than the sum of its proper divisors (34265847).

42664713 is a wasteful number, since it uses less digits than its factorization.

42664713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 24192, while the sum is 33.

The square root of 42664713 is about 6531.8230992580. The cubic root of 42664713 is about 349.4268524224.

The spelling of 42664713 in words is "forty-two million, six hundred sixty-four thousand, seven hundred thirteen".