997353699 has 8 divisors (see below), whose sum is σ = 1331393280. Its totient is φ = 664108296.

The previous prime is 997353593. The next prime is 997353727. The reversal of 997353699 is 996353799.

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

It is not a de Polignac number, because 997353699 - 2⁷ = 997353571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997353199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 195607 + ... + 200640.

It is an arithmetic number, because the mean of its divisors is an integer number (166424160).

Almost surely, 2^997353699 is an apocalyptic number.

997353699 is a deficient number, since it is larger than the sum of its proper divisors (334039581).

997353699 is a wasteful number, since it uses less digits than its factorization.

997353699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397089.

The product of its digits is 12400290, while the sum is 60.

The square root of 997353699 is about 31580.9071908962. The cubic root of 997353699 is about 999.1171204197.

The spelling of 997353699 in words is "nine hundred ninety-seven million, three hundred fifty-three thousand, six hundred ninety-nine".