997084913 has 4 divisors (see below), whose sum is σ = 1087729008. Its totient is φ = 906440820.

The previous prime is 997084909. The next prime is 997084927. The reversal of 997084913 is 319480799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 997084913 - 2² = 997084909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997084943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45322031 + ... + 45322052.

It is an arithmetic number, because the mean of its divisors is an integer number (271932252).

Almost surely, 2^997084913 is an apocalyptic number.

It is an amenable number.

997084913 is a deficient number, since it is larger than the sum of its proper divisors (90644095).

997084913 is a wasteful number, since it uses less digits than its factorization.

997084913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90644094.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 997084913 is about 31576.6513899115. The cubic root of 997084913 is about 999.0273586088.

The spelling of 997084913 in words is "nine hundred ninety-seven million, eighty-four thousand, nine hundred thirteen".