374399569 has 2 divisors, whose sum is σ = 374399570. Its totient is φ = 374399568.

The previous prime is 374399567. The next prime is 374399587. The reversal of 374399569 is 965993473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360050625 + 14348944 = 18975^2 + 3788^2 .

It is an emirp because it is prime and its reverse (965993473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 374399569 - 2¹ = 374399567 is a prime.

It is a super-2 number, since 2×374399569² = 280350074534771522, which contains 22 as substring.

Together with 374399567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (374399567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187199784 + 187199785.

It is an arithmetic number, because the mean of its divisors is an integer number (187199785).

Almost surely, 2^374399569 is an apocalyptic number.

It is an amenable number.

374399569 is a deficient number, since it is larger than the sum of its proper divisors (1).

374399569 is an equidigital number, since it uses as much as digits as its factorization.

374399569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 55.

The square root of 374399569 is about 19349.4074586278. The cubic root of 374399569 is about 720.7397033997.

The spelling of 374399569 in words is "three hundred seventy-four million, three hundred ninety-nine thousand, five hundred sixty-nine".