275897089 has 8 divisors (see below), whose sum is σ = 301555520. Its totient is φ = 250872336.

The previous prime is 275897087. The next prime is 275897101. The reversal of 275897089 is 980798572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 275897089 - 2¹ = 275897087 is a prime.

It is a super-2 number, since 2×275897089² = 152238407437347842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275897087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157509 + ... + 159250.

It is an arithmetic number, because the mean of its divisors is an integer number (37694440).

Almost surely, 2^275897089 is an apocalyptic number.

It is an amenable number.

275897089 is a deficient number, since it is larger than the sum of its proper divisors (25658431).

275897089 is a wasteful number, since it uses less digits than its factorization.

275897089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316839.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The square root of 275897089 is about 16610.1501799352. The cubic root of 275897089 is about 651.0020748666.

The spelling of 275897089 in words is "two hundred seventy-five million, eight hundred ninety-seven thousand, eighty-nine".