374481857 has 2 divisors, whose sum is σ = 374481858. Its totient is φ = 374481856.

The previous prime is 374481781. The next prime is 374481859. The reversal of 374481857 is 758184473.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188677696 + 185804161 = 13736^2 + 13631^2 .

It is an emirp because it is prime and its reverse (758184473) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-374481857 is a prime.

It is a super-2 number, since 2×374481857² = 280473322444336898, which contains 22 as substring.

Together with 374481859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (374481859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187240928 + 187240929.

It is an arithmetic number, because the mean of its divisors is an integer number (187240929).

Almost surely, 2^374481857 is an apocalyptic number.

It is an amenable number.

374481857 is a deficient number, since it is larger than the sum of its proper divisors (1).

374481857 is an equidigital number, since it uses as much as digits as its factorization.

374481857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 374481857 is about 19351.5337118276. The cubic root of 374481857 is about 720.7925025027.

The spelling of 374481857 in words is "three hundred seventy-four million, four hundred eighty-one thousand, eight hundred fifty-seven".