3618972 has 48 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 1033776.

The previous prime is 3618961. The next prime is 3618991. The reversal of 3618972 is 2798163.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1638 + ... + 3149.

It is an arithmetic number, because the mean of its divisors is an integer number (223440).

Almost surely, 2^3618972 is an apocalyptic number.

It is an amenable number.

3618972 is an abundant number, since it is smaller than the sum of its proper divisors (7106148).

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

3618972 is a wasteful number, since it uses less digits than its factorization.

3618972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4799 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3618972 is about 1902.3595874597. The cubic root of 3618972 is about 153.5306449583.

The spelling of 3618972 in words is "three million, six hundred eighteen thousand, nine hundred seventy-two".