979997426 has 4 divisors (see below), whose sum is σ = 1469996142. Its totient is φ = 489998712.

The previous prime is 979997411. The next prime is 979997437. The reversal of 979997426 is 624799979.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 971880625 + 8116801 = 31175^2 + 2849^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244999355 + ... + 244999358.

Almost surely, 2^979997426 is an apocalyptic number.

979997426 is a deficient number, since it is larger than the sum of its proper divisors (489998716).

979997426 is a wasteful number, since it uses less digits than its factorization.

979997426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489998715.

The product of its digits is 15431472, while the sum is 62.

The square root of 979997426 is about 31304.9105732631. The cubic root of 979997426 is about 993.2875187444.

The spelling of 979997426 in words is "nine hundred seventy-nine million, nine hundred ninety-seven thousand, four hundred twenty-six".