9321972 has 24 divisors (see below), whose sum is σ = 23728992. Its totient is φ = 2824800.

The previous prime is 9321943. The next prime is 9321973. The reversal of 9321972 is 2791239.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9321973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35179 + ... + 35442.

It is an arithmetic number, because the mean of its divisors is an integer number (988708).

Almost surely, 2^9321972 is an apocalyptic number.

It is an amenable number.

9321972 is an abundant number, since it is smaller than the sum of its proper divisors (14407020).

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

9321972 is a wasteful number, since it uses less digits than its factorization.

9321972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70639 (or 70637 counting only the distinct ones).

The product of its digits is 6804, while the sum is 33.

The square root of 9321972 is about 3053.1904624507. The cubic root of 9321972 is about 210.4598539636.

The spelling of 9321972 in words is "nine million, three hundred twenty-one thousand, nine hundred seventy-two".