997194398 has 8 divisors (see below), whose sum is σ = 1583779392. Its totient is φ = 469267936.

The previous prime is 997194379. The next prime is 997194403. The reversal of 997194398 is 893491799.

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

It is a congruent number.

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, 14664590 + ... + 14664657.

It is an arithmetic number, because the mean of its divisors is an integer number (197972424).

Almost surely, 2^997194398 is an apocalyptic number.

997194398 is a deficient number, since it is larger than the sum of its proper divisors (586584994).

997194398 is a wasteful number, since it uses less digits than its factorization.

997194398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29329266.

The product of its digits is 4408992, while the sum is 59.

The square root of 997194398 is about 31578.3849808694. The cubic root of 997194398 is about 999.0639233673.

The spelling of 997194398 in words is "nine hundred ninety-seven million, one hundred ninety-four thousand, three hundred ninety-eight".