9957605 has 16 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 6797760.

The previous prime is 9957599. The next prime is 9957611. The reversal of 9957605 is 5067599.

It is an interprime number because it is at equal distance from previous prime (9957599) and next prime (9957611).

It is not a de Polignac number, because 9957605 - 2⁴ = 9957589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9770 + ... + 10740.

It is an arithmetic number, because the mean of its divisors is an integer number (857304).

Almost surely, 2^9957605 is an apocalyptic number.

It is an amenable number.

9957605 is a deficient number, since it is larger than the sum of its proper divisors (3759259).

9957605 is a wasteful number, since it uses less digits than its factorization.

9957605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 9957605 is about 3155.5673024038. The cubic root of 9957605 is about 215.1385802088.

The spelling of 9957605 in words is "nine million, nine hundred fifty-seven thousand, six hundred five".