997251794 has 32 divisors (see below), whose sum is σ = 1866672000. Its totient is φ = 388189440.

The previous prime is 997251769. The next prime is 997251811. The reversal of 997251794 is 497152799.

It is a super-2 number, since 2×997251794² = 1989022281272436872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227132 + ... + 231480.

It is an arithmetic number, because the mean of its divisors is an integer number (58333500).

Almost surely, 2^997251794 is an apocalyptic number.

997251794 is a deficient number, since it is larger than the sum of its proper divisors (869420206).

997251794 is a wasteful number, since it uses less digits than its factorization.

997251794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858.

The product of its digits is 1428840, while the sum is 53.

The square root of 997251794 is about 31579.2937539775. The cubic root of 997251794 is about 999.0830908679.

The spelling of 997251794 in words is "nine hundred ninety-seven million, two hundred fifty-one thousand, seven hundred ninety-four".