997279272 has 48 divisors (see below), whose sum is σ = 2946509280. Its totient is φ = 302205600.

The previous prime is 997279271. The next prime is 997279273. The reversal of 997279272 is 272972799.

It is an interprime number because it is at equal distance from previous prime (997279271) and next prime (997279273).

It is not an unprimeable number, because it can be changed into a prime (997279271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628804 + ... + 630387.

It is an arithmetic number, because the mean of its divisors is an integer number (61385610).

Almost surely, 2^997279272 is an apocalyptic number.

It is an amenable number.

997279272 is an abundant number, since it is smaller than the sum of its proper divisors (1949230008).

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

997279272 is a wasteful number, since it uses less digits than its factorization.

997279272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259214 (or 1259207 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The square root of 997279272 is about 31579.7288145418. The cubic root of 997279272 is about 999.0922669367.

The spelling of 997279272 in words is "nine hundred ninety-seven million, two hundred seventy-nine thousand, two hundred seventy-two".