997347293858 has 8 divisors (see below), whose sum is σ = 1584022172652. Its totient is φ = 469339902976.

The previous prime is 997347293801. The next prime is 997347293861. The reversal of 997347293858 is 858392743799.

It can be written as a sum of positive squares in 2 ways, for example, as 985109845729 + 12237448129 = 992527^2 + 110623^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14666871935 + ... + 14666872002.

Almost surely, 2^997347293858 is an apocalyptic number.

997347293858 is a deficient number, since it is larger than the sum of its proper divisors (586674878794).

997347293858 is a wasteful number, since it uses less digits than its factorization.

997347293858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29333743956.

The product of its digits is 823011840, while the sum is 74.

The spelling of 997347293858 in words is "nine hundred ninety-seven billion, three hundred forty-seven million, two hundred ninety-three thousand, eight hundred fifty-eight".