7209972 has 180 divisors, whose sum is σ = 24962784. Its totient is φ = 1762560.

The previous prime is 7209947. The next prime is 7210001. The reversal of 7209972 is 2799027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 424108 + ... + 424124.

Almost surely, 2^7209972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7209972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12481392).

7209972 is an abundant number, since it is smaller than the sum of its proper divisors (17752812).

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

7209972 is a wasteful number, since it uses less digits than its factorization.

7209972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 7209972 is about 2685.1391025420. The cubic root of 7209972 is about 193.1869826498.

The spelling of 7209972 in words is "seven million, two hundred nine thousand, nine hundred seventy-two".