565404379 has 2 divisors, whose sum is σ = 565404380. Its totient is φ = 565404378.

The previous prime is 565404353. The next prime is 565404397. The reversal of 565404379 is 973404565.

Together with next prime (565404397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565404379 is a prime.

It is a super-2 number, since 2×565404379² = 639364223584751282, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 565404379 parts by 33627 straight cuts.

It is not a weakly prime, because it can be changed into another prime (565404079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282702189 + 282702190.

It is an arithmetic number, because the mean of its divisors is an integer number (282702190).

Almost surely, 2^565404379 is an apocalyptic number.

565404379 is a deficient number, since it is larger than the sum of its proper divisors (1).

565404379 is an equidigital number, since it uses as much as digits as its factorization.

565404379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 565404379 is about 23778.2333027498. The cubic root of 565404379 is about 826.9001218213.

The spelling of 565404379 in words is "five hundred sixty-five million, four hundred four thousand, three hundred seventy-nine".