899460081 has 27 divisors (see below), whose sum is σ = 1408679649. Its totient is φ = 552794112.

The previous prime is 899460053. The next prime is 899460113. The reversal of 899460081 is 180064998.

The square root of 899460081 is 29991.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 206928225 + 692531856 = 14385^2 + 26316^2 .

It is not a de Polignac number, because 899460081 - 2¹⁷ = 899329009 is a prime.

It is a super-2 number, since 2×899460081² = 1618056874625053122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (899460031) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1169265 + ... + 1170033.

Almost surely, 2^899460081 is an apocalyptic number.

899460081 is the 29991-st square number.

899460081 is the 14996-th centered octagonal number.

It is an amenable number.

899460081 is a deficient number, since it is larger than the sum of its proper divisors (509219568).

899460081 is an equidigital number, since it uses as much as digits as its factorization.

899460081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The cubic root of 899460081 is about 965.2962770725.

The spelling of 899460081 in words is "eight hundred ninety-nine million, four hundred sixty thousand, eighty-one".