375340993 has 2 divisors, whose sum is σ = 375340994. Its totient is φ = 375340992.

The previous prime is 375340981. The next prime is 375341009. The reversal of 375340993 is 399043573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238146624 + 137194369 = 15432^2 + 11713^2 .

It is a cyclic number.

It is not a de Polignac number, because 375340993 - 2⁹ = 375340481 is a prime.

It is a super-2 number, since 2×375340993² = 281761722052452098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (375340393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187670496 + 187670497.

It is an arithmetic number, because the mean of its divisors is an integer number (187670497).

Almost surely, 2^375340993 is an apocalyptic number.

It is an amenable number.

375340993 is a deficient number, since it is larger than the sum of its proper divisors (1).

375340993 is an equidigital number, since it uses as much as digits as its factorization.

375340993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 43.

The square root of 375340993 is about 19373.7191318549. The cubic root of 375340993 is about 721.3432953834.

The spelling of 375340993 in words is "three hundred seventy-five million, three hundred forty thousand, nine hundred ninety-three".