275722989 has 16 divisors (see below), whose sum is σ = 380005440. Its totient is φ = 177730560.

The previous prime is 275722987. The next prime is 275722999. The reversal of 275722989 is 989227572.

It is not a de Polignac number, because 275722989 - 2¹ = 275722987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275722987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1972 + ... + 23565.

It is an arithmetic number, because the mean of its divisors is an integer number (23750340).

Almost surely, 2^275722989 is an apocalyptic number.

It is an amenable number.

275722989 is a deficient number, since it is larger than the sum of its proper divisors (104282451).

275722989 is a wasteful number, since it uses less digits than its factorization.

275722989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25660.

The product of its digits is 1270080, while the sum is 51.

The square root of 275722989 is about 16604.9085815008. The cubic root of 275722989 is about 650.8651115876.

The spelling of 275722989 in words is "two hundred seventy-five million, seven hundred twenty-two thousand, nine hundred eighty-nine".