969557613 has 4 divisors (see below), whose sum is σ = 1292743488. Its totient is φ = 646371740.

The previous prime is 969557597. The next prime is 969557639. The reversal of 969557613 is 316755969.

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.

It is a cyclic number.

It is not a de Polignac number, because 969557613 - 2⁴ = 969557597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969557683) 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, 161592933 + ... + 161592938.

It is an arithmetic number, because the mean of its divisors is an integer number (323185872).

Almost surely, 2^969557613 is an apocalyptic number.

It is an amenable number.

969557613 is a deficient number, since it is larger than the sum of its proper divisors (323185875).

969557613 is a wasteful number, since it uses less digits than its factorization.

969557613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323185874.

The product of its digits is 1530900, while the sum is 51.

The square root of 969557613 is about 31137.7200995834. The cubic root of 969557613 is about 989.7477890328.

The spelling of 969557613 in words is "nine hundred sixty-nine million, five hundred fifty-seven thousand, six hundred thirteen".