77583013 has 4 divisors (see below), whose sum is σ = 78645868. Its totient is φ = 76520160.

The previous prime is 77583007. The next prime is 77583031. The reversal of 77583013 is 31038577.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31038577 = 661 ⋅46957.

It can be written as a sum of positive squares in 2 ways, for example, as 26646244 + 50936769 = 5162^2 + 7137^2 .

It is a cyclic number.

It is not a de Polignac number, because 77583013 - 2⁹ = 77582501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77583013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77583113) 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, 531318 + ... + 531463.

It is an arithmetic number, because the mean of its divisors is an integer number (19661467).

Almost surely, 2^77583013 is an apocalyptic number.

77583013 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

77583013 is a deficient number, since it is larger than the sum of its proper divisors (1062855).

77583013 is a wasteful number, since it uses less digits than its factorization.

77583013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062854.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 77583013 is about 8808.1219905267. The cubic root of 77583013 is about 426.5031213881.

The spelling of 77583013 in words is "seventy-seven million, five hundred eighty-three thousand, thirteen".