997079253 has 8 divisors (see below), whose sum is σ = 1329638016. Its totient is φ = 664620000.

The previous prime is 997079231. The next prime is 997079261. The reversal of 997079253 is 352970799.

It is a happy number.

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

It is not a de Polignac number, because 997079253 - 2²⁰ = 996030677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 997079196 and 997079205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997079203) 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, 2953 + ... + 44753.

It is an arithmetic number, because the mean of its divisors is an integer number (166204752).

Almost surely, 2^997079253 is an apocalyptic number.

It is an amenable number.

997079253 is a deficient number, since it is larger than the sum of its proper divisors (332558763).

997079253 is a wasteful number, since it uses less digits than its factorization.

997079253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49755.

The product of its (nonzero) digits is 1071630, while the sum is 51.

The square root of 997079253 is about 31576.5617666015. The cubic root of 997079253 is about 999.0254682631.

The spelling of 997079253 in words is "nine hundred ninety-seven million, seventy-nine thousand, two hundred fifty-three".