374543669 has 2 divisors, whose sum is σ = 374543670. Its totient is φ = 374543668.

The previous prime is 374543657. The next prime is 374543693. The reversal of 374543669 is 966345473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373919569 + 624100 = 19337^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 374543669 - 2²⁰ = 373495093 is a prime.

It is a super-2 number, since 2×374543669² = 280565919975963122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374543699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187271834 + 187271835.

It is an arithmetic number, because the mean of its divisors is an integer number (187271835).

Almost surely, 2^374543669 is an apocalyptic number.

It is an amenable number.

374543669 is a deficient number, since it is larger than the sum of its proper divisors (1).

374543669 is an equidigital number, since it uses as much as digits as its factorization.

374543669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 47.

The square root of 374543669 is about 19353.1307286444. The cubic root of 374543669 is about 720.8321583402.

The spelling of 374543669 in words is "three hundred seventy-four million, five hundred forty-three thousand, six hundred sixty-nine".