8427972 has 24 divisors (see below), whose sum is σ = 22474816. Its totient is φ = 2407968.

The previous prime is 8427961. The next prime is 8427977. The reversal of 8427972 is 2797248.

It is a self number, because there is not a number n which added to its sum of digits gives 8427972.

It is not an unprimeable number, because it can be changed into a prime (8427977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50083 + ... + 50250.

Almost surely, 2^8427972 is an apocalyptic number.

It is an amenable number.

8427972 is an abundant number, since it is smaller than the sum of its proper divisors (14046844).

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

8427972 is a wasteful number, since it uses less digits than its factorization.

8427972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100347 (or 100345 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 8427972 is about 2903.0969670337. The cubic root of 8427972 is about 203.5046613561.

It can be divided in two parts, 8427 and 972, that multiplied together give a square (8191044 = 2862²).

The spelling of 8427972 in words is "eight million, four hundred twenty-seven thousand, nine hundred seventy-two".