3923172 has 36 divisors (see below), whose sum is σ = 10819536. Its totient is φ = 1188720.

The previous prime is 3923159. The next prime is 3923173. The reversal of 3923172 is 2713293.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3923173) 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, 4558 + ... + 5349.

Almost surely, 2^3923172 is an apocalyptic number.

It is an amenable number.

3923172 is an abundant number, since it is smaller than the sum of its proper divisors (6896364).

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

3923172 is a wasteful number, since it uses less digits than its factorization.

3923172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928 (or 9923 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 3923172 is about 1980.6998763064. The cubic root of 3923172 is about 157.7172210611.

It can be divided in two parts, 3923 and 172, that added together give a triangular number (4095 = T₉₀).

The spelling of 3923172 in words is "three million, nine hundred twenty-three thousand, one hundred seventy-two".