297813993 has 8 divisors (see below), whose sum is σ = 409894656. Its totient is φ = 192138000.

The previous prime is 297813979. The next prime is 297814009. The reversal of 297813993 is 399318792.

It is a happy number.

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

It is not a de Polignac number, because 297813993 - 2¹⁶ = 297748457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (297813493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601058 + ... + 1601243.

It is an arithmetic number, because the mean of its divisors is an integer number (51236832).

Almost surely, 2^297813993 is an apocalyptic number.

It is an amenable number.

297813993 is a deficient number, since it is larger than the sum of its proper divisors (112080663).

297813993 is a wasteful number, since it uses less digits than its factorization.

297813993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202335.

The product of its digits is 734832, while the sum is 51.

The square root of 297813993 is about 17257.2881125628. The cubic root of 297813993 is about 667.8030012097.

The spelling of 297813993 in words is "two hundred ninety-seven million, eight hundred thirteen thousand, nine hundred ninety-three".