725649914 has 16 divisors (see below), whose sum is σ = 1190262816. Its totient is φ = 329053200.

The previous prime is 725649907. The next prime is 725649923. The reversal of 725649914 is 419946527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29912 + ... + 48435.

It is an arithmetic number, because the mean of its divisors is an integer number (74391426).

Almost surely, 2^725649914 is an apocalyptic number.

725649914 is a deficient number, since it is larger than the sum of its proper divisors (464612902).

725649914 is a wasteful number, since it uses less digits than its factorization.

725649914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78781.

The product of its digits is 544320, while the sum is 47.

The square root of 725649914 is about 26937.8899322126. The cubic root of 725649914 is about 898.6192465581.

The spelling of 725649914 in words is "seven hundred twenty-five million, six hundred forty-nine thousand, nine hundred fourteen".