979901 has 4 divisors (see below), whose sum is σ = 1055292. Its totient is φ = 904512.

The previous prime is 979889. The next prime is 979907. The reversal of 979901 is 109979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109979 = 71 ⋅1549.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 454276 = 725^2 + 674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37676 + ... + 37701.

It is an arithmetic number, because the mean of its divisors is an integer number (263823).

2⁹⁷⁹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

979901 is a deficient number, since it is larger than the sum of its proper divisors (75391).

979901 is a wasteful number, since it uses less digits than its factorization.

979901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75390.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 979901 is about 989.8994898473. The cubic root of 979901 is about 99.3254939787.

The spelling of 979901 in words is "nine hundred seventy-nine thousand, nine hundred one".