899429957 has 2 divisors, whose sum is σ = 899429958. Its totient is φ = 899429956.

The previous prime is 899429879. The next prime is 899429963. The reversal of 899429957 is 759924998.

899429957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820593316 + 78836641 = 28646^2 + 8879^2 .

It is a cyclic number.

It is not a de Polignac number, because 899429957 - 2¹⁶ = 899364421 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 899429957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899429057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449714978 + 449714979.

It is an arithmetic number, because the mean of its divisors is an integer number (449714979).

Almost surely, 2^899429957 is an apocalyptic number.

It is an amenable number.

899429957 is a deficient number, since it is larger than the sum of its proper divisors (1).

899429957 is an equidigital number, since it uses as much as digits as its factorization.

899429957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 62.

The square root of 899429957 is about 29990.4977784631. The cubic root of 899429957 is about 965.2855006411.

It can be divided in two parts, 89942 and 9957, that added together give a palindrome (99899).

The spelling of 899429957 in words is "eight hundred ninety-nine million, four hundred twenty-nine thousand, nine hundred fifty-seven".