6156972 has 60 divisors (see below), whose sum is σ = 16641856. Its totient is φ = 1982880.

The previous prime is 6156971. The next prime is 6156973. The reversal of 6156972 is 2796516.

It is an interprime number because it is at equal distance from previous prime (6156971) and next prime (6156973).

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

It is not an unprimeable number, because it can be changed into a prime (6156971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9738 + ... + 10350.

Almost surely, 2^6156972 is an apocalyptic number.

6156972 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6156972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8320928).

6156972 is an abundant number, since it is smaller than the sum of its proper divisors (10484884).

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

6156972 is a wasteful number, since it uses less digits than its factorization.

6156972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 649 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 6156972 is about 2481.3246462323. The cubic root of 6156972 is about 183.2830877917.

The spelling of 6156972 in words is "six million, one hundred fifty-six thousand, nine hundred seventy-two".