275672991 has 16 divisors (see below), whose sum is σ = 401304960. Its totient is φ = 166938720.

The previous prime is 275672989. The next prime is 275673017. The reversal of 275672991 is 199276572.

It is not a de Polignac number, because 275672991 - 2¹ = 275672989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275672991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275672941) 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, 50640 + ... + 55818.

It is an arithmetic number, because the mean of its divisors is an integer number (25081560).

Almost surely, 2^275672991 is an apocalyptic number.

275672991 is a deficient number, since it is larger than the sum of its proper divisors (125631969).

275672991 is a wasteful number, since it uses less digits than its factorization.

275672991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806.

The product of its digits is 476280, while the sum is 48.

The square root of 275672991 is about 16603.4029945671. The cubic root of 275672991 is about 650.8257678473.

The spelling of 275672991 in words is "two hundred seventy-five million, six hundred seventy-two thousand, nine hundred ninety-one".