991476325 has 12 divisors (see below), whose sum is σ = 1405063840. Its totient is φ = 679869360.

The previous prime is 991476301. The next prime is 991476359. The reversal of 991476325 is 523674199.

It is a happy number.

It is not a de Polignac number, because 991476325 - 2⁷ = 991476197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2832615 + ... + 2832964.

Almost surely, 2^991476325 is an apocalyptic number.

It is an amenable number.

991476325 is a deficient number, since it is larger than the sum of its proper divisors (413587515).

991476325 is a wasteful number, since it uses less digits than its factorization.

991476325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665596 (or 5665591 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 991476325 is about 31487.7170496687. The cubic root of 991476325 is about 997.1506639953.

The spelling of 991476325 in words is "nine hundred ninety-one million, four hundred seventy-six thousand, three hundred twenty-five".