979542 has 12 divisors (see below), whose sum is σ = 2122380. Its totient is φ = 326508.

The previous prime is 979541. The next prime is 979543. The reversal of 979542 is 245979.

It is an interprime number because it is at equal distance from previous prime (979541) and next prime (979543).

It is a junction number, because it is equal to n+sod(n) for n = 979497 and 979506.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979542.

It is not an unprimeable number, because it can be changed into a prime (979541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27192 + ... + 27227.

It is an arithmetic number, because the mean of its divisors is an integer number (176865).

2⁹⁷⁹⁵⁴² is an apocalyptic number.

979542 is an abundant number, since it is smaller than the sum of its proper divisors (1142838).

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

979542 is a wasteful number, since it uses less digits than its factorization.

979542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54427 (or 54424 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 979542 is about 989.7181416949. The cubic root of 979542 is about 99.3133627505.

It can be divided in two parts, 979 and 542, that added together give a square (1521 = 39²).

The spelling of 979542 in words is "nine hundred seventy-nine thousand, five hundred forty-two".