297893893 has 12 divisors (see below), whose sum is σ = 327954060. Its totient is φ = 270385280.

The previous prime is 297893879. The next prime is 297893909. The reversal of 297893893 is 398398792.

It can be written as a sum of positive squares in 2 ways, for example, as 217916644 + 79977249 = 14762^2 + 8943^2 .

It is not a de Polignac number, because 297893893 - 2²¹ = 295796741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297893863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94893 + ... + 97981.

It is an arithmetic number, because the mean of its divisors is an integer number (27329505).

Almost surely, 2^297893893 is an apocalyptic number.

It is an amenable number.

297893893 is a deficient number, since it is larger than the sum of its proper divisors (30060167).

297893893 is a wasteful number, since it uses less digits than its factorization.

297893893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908 (or 3897 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 58.

The square root of 297893893 is about 17259.6029212726. The cubic root of 297893893 is about 667.8627171062.

The spelling of 297893893 in words is "two hundred ninety-seven million, eight hundred ninety-three thousand, eight hundred ninety-three".