5979640 has 16 divisors (see below), whose sum is σ = 13454280. Its totient is φ = 2391840.

The previous prime is 5979629. The next prime is 5979653. The reversal of 5979640 is 469795.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 149491 = 5979640 / (5 + 9 + 7 + 9 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 5979593 and 5979602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74706 + ... + 74785.

Almost surely, 2^5979640 is an apocalyptic number.

It is an amenable number.

5979640 is an abundant number, since it is smaller than the sum of its proper divisors (7474640).

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

5979640 is a wasteful number, since it uses less digits than its factorization.

5979640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149502 (or 149498 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 5979640 is about 2445.3302435458. The cubic root of 5979640 is about 181.5062898300.

The spelling of 5979640 in words is "five million, nine hundred seventy-nine thousand, six hundred forty".