979699 has 8 divisors (see below), whose sum is σ = 1127520. Its totient is φ = 833856.

The previous prime is 979691. The next prime is 979709. The reversal of 979699 is 996979.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 979699 - 2³ = 979691 is a prime.

It is a Duffinian number.

979699 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (979691) 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, 807 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (140940).

2⁹⁷⁹⁶⁹⁹ is an apocalyptic number.

979699 is a deficient number, since it is larger than the sum of its proper divisors (147821).

979699 is a wasteful number, since it uses less digits than its factorization.

979699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its digits is 275562, while the sum is 49.

The square root of 979699 is about 989.7974540278. The cubic root of 979699 is about 99.3186684155.

It can be divided in two parts, 97969 and 9, that multiplied together give a square (881721 = 939²).

The spelling of 979699 in words is "nine hundred seventy-nine thousand, six hundred ninety-nine".