899401 has 2 divisors, whose sum is σ = 899402. Its totient is φ = 899400.

The previous prime is 899387. The next prime is 899413. The reversal of 899401 is 104998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 89401 = 900^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 899401 - 2⁷ = 899273 is a prime.

It is a super-3 number, since 3×899401³ = 2182636195643334603, which contains 333 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (899491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449700 + 449701.

It is an arithmetic number, because the mean of its divisors is an integer number (449701).

2⁸⁹⁹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

899401 is a deficient number, since it is larger than the sum of its proper divisors (1).

899401 is an equidigital number, since it uses as much as digits as its factorization.

899401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 899401 is about 948.3675447842. The cubic root of 899401 is about 96.5275141460.

Subtracting from 899401 its product of nonzero digits (2592), we obtain a square (896809 = 947²).

The spelling of 899401 in words is "eight hundred ninety-nine thousand, four hundred one".