997392419 has 8 divisors (see below), whose sum is σ = 1030013952. Its totient is φ = 964798920.

The previous prime is 997392379. The next prime is 997392433. The reversal of 997392419 is 914293799.

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 997392419 - 2¹² = 997388323 is a prime.

It is a super-2 number, since 2×997392419² = 1989583274957343122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997392449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84452 + ... + 95534.

It is an arithmetic number, because the mean of its divisors is an integer number (128751744).

Almost surely, 2^997392419 is an apocalyptic number.

997392419 is a deficient number, since it is larger than the sum of its proper divisors (32621533).

997392419 is a wasteful number, since it uses less digits than its factorization.

997392419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14017.

The product of its digits is 1102248, while the sum is 53.

The square root of 997392419 is about 31581.5202135679. The cubic root of 997392419 is about 999.1300497393.

The spelling of 997392419 in words is "nine hundred ninety-seven million, three hundred ninety-two thousand, four hundred nineteen".