6537972 has 36 divisors (see below), whose sum is σ = 17747520. Its totient is φ = 1867824.

The previous prime is 6537959. The next prime is 6537977. The reversal of 6537972 is 2797356.

It is a self number, because there is not a number n which added to its sum of digits gives 6537972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6537977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4972 + ... + 6147.

Almost surely, 2^6537972 is an apocalyptic number.

It is an amenable number.

6537972 is an abundant number, since it is smaller than the sum of its proper divisors (11209548).

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

6537972 is a wasteful number, since it uses less digits than its factorization.

6537972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140 (or 11131 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 6537972 is about 2556.9458343891. The cubic root of 6537972 is about 186.9882650609.

The spelling of 6537972 in words is "six million, five hundred thirty-seven thousand, nine hundred seventy-two".