899460869 has 2 divisors, whose sum is σ = 899460870. Its totient is φ = 899460868.

The previous prime is 899460773. The next prime is 899460907. The reversal of 899460869 is 968064998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598438369 + 301022500 = 24463^2 + 17350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899460869 is a prime.

It is a super-2 number, since 2×899460869² = 1618059709724470322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899463869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449730434 + 449730435.

It is an arithmetic number, because the mean of its divisors is an integer number (449730435).

Almost surely, 2^899460869 is an apocalyptic number.

It is an amenable number.

899460869 is a deficient number, since it is larger than the sum of its proper divisors (1).

899460869 is an equidigital number, since it uses as much as digits as its factorization.

899460869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The square root of 899460869 is about 29991.0131372716. The cubic root of 899460869 is about 965.2965589651.

The spelling of 899460869 in words is "eight hundred ninety-nine million, four hundred sixty thousand, eight hundred sixty-nine".