874975649 has 2 divisors, whose sum is σ = 874975650. Its totient is φ = 874975648.

The previous prime is 874975609. The next prime is 874975681. The reversal of 874975649 is 946579478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862479424 + 12496225 = 29368^2 + 3535^2 .

It is a cyclic number.

It is not a de Polignac number, because 874975649 - 2²⁴ = 858198433 is a prime.

It is not a weakly prime, because it can be changed into another prime (874975609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437487824 + 437487825.

It is an arithmetic number, because the mean of its divisors is an integer number (437487825).

Almost surely, 2^874975649 is an apocalyptic number.

It is an amenable number.

874975649 is a deficient number, since it is larger than the sum of its proper divisors (1).

874975649 is an equidigital number, since it uses as much as digits as its factorization.

874975649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The square root of 874975649 is about 29579.9873056092. The cubic root of 874975649 is about 956.4567185825.

The spelling of 874975649 in words is "eight hundred seventy-four million, nine hundred seventy-five thousand, six hundred forty-nine".