9645972 has 24 divisors (see below), whose sum is σ = 25722816. Its totient is φ = 2755968.

The previous prime is 9645959. The next prime is 9646003. The reversal of 9645972 is 2795469.

9645972 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57333 + ... + 57500.

It is an arithmetic number, because the mean of its divisors is an integer number (1071784).

Almost surely, 2^9645972 is an apocalyptic number.

It is an amenable number.

9645972 is an abundant number, since it is smaller than the sum of its proper divisors (16076844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9645972 is a wasteful number, since it uses less digits than its factorization.

9645972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114847 (or 114845 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 9645972 is about 3105.7965161936. The cubic root of 9645972 is about 212.8704274871.

The spelling of 9645972 in words is "nine million, six hundred forty-five thousand, nine hundred seventy-two".