913228407 has 48 divisors (see below), whose sum is σ = 1708994560. Its totient is φ = 456342336.

The previous prime is 913228403. The next prime is 913228417. The reversal of 913228407 is 704822319.

It is not a de Polignac number, because 913228407 - 2² = 913228403 is a prime.

It is a super-2 number, since 2×913228407² = 1667972246703515298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913228403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13783 + ... + 44904.

Almost surely, 2^913228407 is an apocalyptic number.

913228407 is a deficient number, since it is larger than the sum of its proper divisors (795766153).

913228407 is a wasteful number, since it uses less digits than its factorization.

913228407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58732 (or 58729 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 913228407 is about 30219.6692073226. The cubic root of 913228407 is about 970.1967245452.

The spelling of 913228407 in words is "nine hundred thirteen million, two hundred twenty-eight thousand, four hundred seven".