374630891 has 2 divisors, whose sum is σ = 374630892. Its totient is φ = 374630890.

The previous prime is 374630881. The next prime is 374630941. The reversal of 374630891 is 198036473.

It is a weak prime.

It is an emirp because it is prime and its reverse (198036473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 374630891 - 2²² = 370436587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (374630801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187315445 + 187315446.

It is an arithmetic number, because the mean of its divisors is an integer number (187315446).

Almost surely, 2^374630891 is an apocalyptic number.

374630891 is a deficient number, since it is larger than the sum of its proper divisors (1).

374630891 is an equidigital number, since it uses as much as digits as its factorization.

374630891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 374630891 is about 19355.3840313232. The cubic root of 374630891 is about 720.8881086854. Note that the first 3 decimals are identical.

The spelling of 374630891 in words is "three hundred seventy-four million, six hundred thirty thousand, eight hundred ninety-one".