679022813 has 24 divisors (see below), whose sum is σ = 815750208. Its totient is φ = 553620672.

The previous prime is 679022807. The next prime is 679022819. The reversal of 679022813 is 318220976.

It is an interprime number because it is at equal distance from previous prime (679022807) and next prime (679022819).

It is not a de Polignac number, because 679022813 - 2¹⁴ = 679006429 is a prime.

It is a super-2 number, since 2×679022813² = 922143961148865938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679022819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862406 + ... + 863192.

It is an arithmetic number, because the mean of its divisors is an integer number (33989592).

Almost surely, 2^679022813 is an apocalyptic number.

It is an amenable number.

679022813 is a deficient number, since it is larger than the sum of its proper divisors (136727395).

679022813 is a wasteful number, since it uses less digits than its factorization.

679022813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 679022813 is about 26058.0661792083. The cubic root of 679022813 is about 878.9445045754.

The spelling of 679022813 in words is "six hundred seventy-nine million, twenty-two thousand, eight hundred thirteen".