979740 has 36 divisors (see below), whose sum is σ = 2972424. Its totient is φ = 261216.

The previous prime is 979717. The next prime is 979747. The reversal of 979740 is 47979.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 979695 and 979704.

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 979740.

It is not an unprimeable number, because it can be changed into a prime (979747) 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, 2542 + ... + 2901.

2⁹⁷⁹⁷⁴⁰ is an apocalyptic number.

979740 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

979740 is an abundant number, since it is smaller than the sum of its proper divisors (1992684).

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

979740 is a wasteful number, since it uses less digits than its factorization.

979740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 979740 is about 989.8181651192. The cubic root of 979740 is about 99.3200538780.

The spelling of 979740 in words is "nine hundred seventy-nine thousand, seven hundred forty".