874804657 has 2 divisors, whose sum is σ = 874804658. Its totient is φ = 874804656.

The previous prime is 874804627. The next prime is 874804663. The reversal of 874804657 is 756408478.

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., 572357776 + 302446881 = 23924^2 + 17391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874804657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 874804657.

It is not a weakly prime, because it can be changed into another prime (874804627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437402328 + 437402329.

It is an arithmetic number, because the mean of its divisors is an integer number (437402329).

Almost surely, 2^874804657 is an apocalyptic number.

It is an amenable number.

874804657 is a deficient number, since it is larger than the sum of its proper divisors (1).

874804657 is an equidigital number, since it uses as much as digits as its factorization.

874804657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The square root of 874804657 is about 29577.0968318393. The cubic root of 874804657 is about 956.3944093810.

The spelling of 874804657 in words is "eight hundred seventy-four million, eight hundred four thousand, six hundred fifty-seven".