997092665 has 8 divisors (see below), whose sum is σ = 1248533568. Its totient is φ = 762992560.

The previous prime is 997092637. The next prime is 997092683. The reversal of 997092665 is 566290799.

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

It is not a de Polignac number, because 997092665 - 2²⁶ = 929983801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4335071 + ... + 4335300.

It is an arithmetic number, because the mean of its divisors is an integer number (156066696).

Almost surely, 2^997092665 is an apocalyptic number.

It is an amenable number.

997092665 is a deficient number, since it is larger than the sum of its proper divisors (251440903).

997092665 is a wasteful number, since it uses less digits than its factorization.

997092665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670399.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 997092665 is about 31576.7741385975. The cubic root of 997092665 is about 999.0299476360.

The spelling of 997092665 in words is "nine hundred ninety-seven million, ninety-two thousand, six hundred sixty-five".