913557473 has 4 divisors (see below), whose sum is σ = 913725120. Its totient is φ = 913389828.

The previous prime is 913557443. The next prime is 913557479. The reversal of 913557473 is 374755319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 374755319 = 1283 ⋅292093.

It is a cyclic number.

It is not a de Polignac number, because 913557473 - 2¹⁴ = 913541089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913557479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75365 + ... + 86642.

It is an arithmetic number, because the mean of its divisors is an integer number (228431280).

Almost surely, 2^913557473 is an apocalyptic number.

It is an amenable number.

913557473 is a deficient number, since it is larger than the sum of its proper divisors (167647).

913557473 is a wasteful number, since it uses less digits than its factorization.

913557473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167646.

The product of its digits is 396900, while the sum is 44.

The square root of 913557473 is about 30225.1132834932. The cubic root of 913557473 is about 970.3132417327.

The spelling of 913557473 in words is "nine hundred thirteen million, five hundred fifty-seven thousand, four hundred seventy-three".