315828769 has 2 divisors, whose sum is σ = 315828770. Its totient is φ = 315828768.

The previous prime is 315828761. The next prime is 315828787. The reversal of 315828769 is 967828513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299117025 + 16711744 = 17295^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 315828769 - 2³ = 315828761 is a prime.

It is a super-2 number, since 2×315828769² = 199495622656110722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315828761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157914384 + 157914385.

It is an arithmetic number, because the mean of its divisors is an integer number (157914385).

Almost surely, 2^315828769 is an apocalyptic number.

It is an amenable number.

315828769 is a deficient number, since it is larger than the sum of its proper divisors (1).

315828769 is an equidigital number, since it uses as much as digits as its factorization.

315828769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 315828769 is about 17771.5719338499. The cubic root of 315828769 is about 681.0054107900.

The spelling of 315828769 in words is "three hundred fifteen million, eight hundred twenty-eight thousand, seven hundred sixty-nine".