513223767 has 12 divisors (see below), whose sum is σ = 847226640. Its totient is φ = 293270688.

The previous prime is 513223747. The next prime is 513223787. The reversal of 513223767 is 767322315.

It is an interprime number because it is at equal distance from previous prime (513223747) and next prime (513223787).

It is not a de Polignac number, because 513223767 - 2⁷ = 513223639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513223717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4073142 + ... + 4073267.

It is an arithmetic number, because the mean of its divisors is an integer number (70602220).

Almost surely, 2^513223767 is an apocalyptic number.

513223767 is a deficient number, since it is larger than the sum of its proper divisors (334002873).

513223767 is a wasteful number, since it uses less digits than its factorization.

513223767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146422 (or 8146419 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 513223767 is about 22654.4425444547. The cubic root of 513223767 is about 800.6368715047.

The spelling of 513223767 in words is "five hundred thirteen million, two hundred twenty-three thousand, seven hundred sixty-seven".