939972 has 24 divisors (see below), whose sum is σ = 2392992. Its totient is φ = 284800.

The previous prime is 939971. The next prime is 939973. The reversal of 939972 is 279939.

It is an interprime number because it is at equal distance from previous prime (939971) and next prime (939973).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 939972.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 939972.

It is not an unprimeable number, because it can be changed into a prime (939971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (99708).

2⁹³⁹⁹⁷² is an apocalyptic number.

It is an amenable number.

939972 is an abundant number, since it is smaller than the sum of its proper divisors (1453020).

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

939972 is a wasteful number, since it uses less digits than its factorization.

939972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139 (or 7137 counting only the distinct ones).

The product of its digits is 30618, while the sum is 39.

The square root of 939972 is about 969.5215314783. The cubic root of 939972 is about 97.9576382232.

The spelling of 939972 in words is "nine hundred thirty-nine thousand, nine hundred seventy-two".