899785937 has 2 divisors, whose sum is σ = 899785938. Its totient is φ = 899785936.

The previous prime is 899785927. The next prime is 899785951. The reversal of 899785937 is 739587998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899760016 + 25921 = 29996^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 899785937 - 2¹⁰ = 899784913 is a prime.

It is a super-2 number, since 2×899785937² = 1619229464845935938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (899785927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449892968 + 449892969.

It is an arithmetic number, because the mean of its divisors is an integer number (449892969).

Almost surely, 2^899785937 is an apocalyptic number.

It is an amenable number.

899785937 is a deficient number, since it is larger than the sum of its proper divisors (1).

899785937 is an equidigital number, since it uses as much as digits as its factorization.

899785937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 65.

The square root of 899785937 is about 29996.4320711647. The cubic root of 899785937 is about 965.4128320345.

The spelling of 899785937 in words is "eight hundred ninety-nine million, seven hundred eighty-five thousand, nine hundred thirty-seven".