4091972 has 12 divisors (see below), whose sum is σ = 7182336. Its totient is φ = 2039880.

The previous prime is 4091959. The next prime is 4091993. The reversal of 4091972 is 2791904.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (598528).

Almost surely, 2^4091972 is an apocalyptic number.

It is an amenable number.

4091972 is a deficient number, since it is larger than the sum of its proper divisors (3090364).

4091972 is a wasteful number, since it uses less digits than its factorization.

4091972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 4091972 is about 2022.8623284841. The cubic root of 4091972 is about 159.9475348815.

The spelling of 4091972 in words is "four million, ninety-one thousand, nine hundred seventy-two".