671274725 has 18 divisors (see below), whose sum is σ = 914934930. Its totient is φ = 488197600.

The previous prime is 671274707. The next prime is 671274743. The reversal of 671274725 is 527472176.

It is an interprime number because it is at equal distance from previous prime (671274707) and next prime (671274743).

It can be written as a sum of positive squares in 3 ways, for example, as 93064609 + 578210116 = 9647^2 + 24046^2 .

It is not a de Polignac number, because 671274725 - 2¹⁸ = 671012581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 107930 + ... + 113979.

Almost surely, 2^671274725 is an apocalyptic number.

It is an amenable number.

671274725 is a deficient number, since it is larger than the sum of its proper divisors (243660205).

671274725 is a wasteful number, since it uses less digits than its factorization.

671274725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221941 (or 221925 counting only the distinct ones).

The product of its digits is 164640, while the sum is 41.

The square root of 671274725 is about 25908.9699718071. The cubic root of 671274725 is about 875.5885998869.

The spelling of 671274725 in words is "six hundred seventy-one million, two hundred seventy-four thousand, seven hundred twenty-five".