8724942 has 16 divisors (see below), whose sum is σ = 19388880. Its totient is φ = 2908296.

The previous prime is 8724929. The next prime is 8724943. The reversal of 8724942 is 2494278.

It is a super-2 number, since 2×8724942² = 152249225806728, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8724897 and 8724906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8724943) 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, 80733 + ... + 80840.

It is an arithmetic number, because the mean of its divisors is an integer number (1211805).

Almost surely, 2^8724942 is an apocalyptic number.

8724942 is an abundant number, since it is smaller than the sum of its proper divisors (10663938).

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

8724942 is a wasteful number, since it uses less digits than its factorization.

8724942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161584 (or 161578 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8724942 is about 2953.8012797072. The cubic root of 8724942 is about 205.8673699317.

The spelling of 8724942 in words is "eight million, seven hundred twenty-four thousand, nine hundred forty-two".