408875893 has 2 divisors, whose sum is σ = 408875894. Its totient is φ = 408875892.

The previous prime is 408875851. The next prime is 408875897. The reversal of 408875893 is 398578804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342176004 + 66699889 = 18498^2 + 8167^2 .

It is a cyclic number.

It is not a de Polignac number, because 408875893 - 2²¹ = 406778741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 408875893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408875897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204437946 + 204437947.

It is an arithmetic number, because the mean of its divisors is an integer number (204437947).

Almost surely, 2^408875893 is an apocalyptic number.

It is an amenable number.

408875893 is a deficient number, since it is larger than the sum of its proper divisors (1).

408875893 is an equidigital number, since it uses as much as digits as its factorization.

408875893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 408875893 is about 20220.6798352578. The cubic root of 408875893 is about 742.2163241220.

The spelling of 408875893 in words is "four hundred eight million, eight hundred seventy-five thousand, eight hundred ninety-three".