898979933 has 2 divisors, whose sum is σ = 898979934. Its totient is φ = 898979932.

The previous prime is 898979923. The next prime is 898979971. The reversal of 898979933 is 339979898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 892694884 + 6285049 = 29878^2 + 2507^2 .

It is a cyclic number.

It is not a de Polignac number, because 898979933 - 2²⁰ = 897931357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 898979933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898979923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449489966 + 449489967.

It is an arithmetic number, because the mean of its divisors is an integer number (449489967).

Almost surely, 2^898979933 is an apocalyptic number.

It is an amenable number.

898979933 is a deficient number, since it is larger than the sum of its proper divisors (1).

898979933 is an equidigital number, since it uses as much as digits as its factorization.

898979933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26453952, while the sum is 65.

The square root of 898979933 is about 29982.9940633020. The cubic root of 898979933 is about 965.1244823172.

The spelling of 898979933 in words is "eight hundred ninety-eight million, nine hundred seventy-nine thousand, nine hundred thirty-three".