64023013 has 4 divisors (see below), whose sum is σ = 64216768. Its totient is φ = 63829260.

The previous prime is 64022953. The next prime is 64023023. The reversal of 64023013 is 31032046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64023013 - 2²¹ = 61925861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64023023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96381 + ... + 97042.

It is an arithmetic number, because the mean of its divisors is an integer number (16054192).

Almost surely, 2^64023013 is an apocalyptic number.

It is an amenable number.

64023013 is a deficient number, since it is larger than the sum of its proper divisors (193755).

64023013 is a wasteful number, since it uses less digits than its factorization.

64023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193754.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 64023013 is about 8001.4381832268. The cubic root of 64023013 is about 400.0479380046.

Adding to 64023013 its reverse (31032046), we get a palindrome (95055059).

It can be divided in two parts, 640 and 23013, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 64023013 in words is "sixty-four million, twenty-three thousand, thirteen".