401925899 has 2 divisors, whose sum is σ = 401925900. Its totient is φ = 401925898.

The previous prime is 401925863. The next prime is 401925907. The reversal of 401925899 is 998529104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401925899 - 2²⁴ = 385148683 is a prime.

It is not a weakly prime, because it can be changed into another prime (401925499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200962949 + 200962950.

It is an arithmetic number, because the mean of its divisors is an integer number (200962950).

Almost surely, 2^401925899 is an apocalyptic number.

401925899 is a deficient number, since it is larger than the sum of its proper divisors (1).

401925899 is an equidigital number, since it uses as much as digits as its factorization.

401925899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 401925899 is about 20048.0896596160. The cubic root of 401925899 is about 737.9869190524.

The spelling of 401925899 in words is "four hundred one million, nine hundred twenty-five thousand, eight hundred ninety-nine".