899962081 has 2 divisors, whose sum is σ = 899962082. Its totient is φ = 899962080.

The previous prime is 899962073. The next prime is 899962087. The reversal of 899962081 is 180269998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627051681 + 272910400 = 25041^2 + 16520^2 .

It is a cyclic number.

It is not a de Polignac number, because 899962081 - 2³ = 899962073 is a prime.

It is a super-2 number, since 2×899962081² = 1619863494475701122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (899962087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449981040 + 449981041.

It is an arithmetic number, because the mean of its divisors is an integer number (449981041).

Almost surely, 2^899962081 is an apocalyptic number.

It is an amenable number.

899962081 is a deficient number, since it is larger than the sum of its proper divisors (1).

899962081 is an equidigital number, since it uses as much as digits as its factorization.

899962081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 899962081 is about 29999.3680100098. The cubic root of 899962081 is about 965.4758250108.

The spelling of 899962081 in words is "eight hundred ninety-nine million, nine hundred sixty-two thousand, eighty-one".