706637725 has 48 divisors (see below), whose sum is σ = 956095056. Its totient is φ = 516096000.

The previous prime is 706637707. The next prime is 706637731. The reversal of 706637725 is 527736607.

It can be written as a sum of positive squares in 24 ways, for example, as 511392996 + 195244729 = 22614^2 + 13973^2 .

It is not a de Polignac number, because 706637725 - 2⁷ = 706637597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2514585 + ... + 2514865.

It is an arithmetic number, because the mean of its divisors is an integer number (19918647).

Almost surely, 2^706637725 is an apocalyptic number.

It is an amenable number.

706637725 is a deficient number, since it is larger than the sum of its proper divisors (249457331).

706637725 is a wasteful number, since it uses less digits than its factorization.

706637725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 43.

The square root of 706637725 is about 26582.6583508873. The cubic root of 706637725 is about 890.7016833122.

The spelling of 706637725 in words is "seven hundred six million, six hundred thirty-seven thousand, seven hundred twenty-five".