275942997 has 128 divisors (see below), whose sum is σ = 510935040. Its totient is φ = 145152000.

The previous prime is 275942977. The next prime is 275943011. The reversal of 275942997 is 799249572.

275942997 is a `hidden beast` number, since 27 + 594 + 29 + 9 + 7 = 666.

It is not a de Polignac number, because 275942997 - 2⁷ = 275942869 is a prime.

It is a super-2 number, since 2×275942997² = 152289075186684018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275942977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6417258 + ... + 6417300.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^275942997 is an apocalyptic number.

275942997 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

275942997 is a deficient number, since it is larger than the sum of its proper divisors (234992043).

275942997 is a wasteful number, since it uses less digits than its factorization.

275942997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 146 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 275942997 is about 16611.5320485499. The cubic root of 275942997 is about 651.0381807758.

The spelling of 275942997 in words is "two hundred seventy-five million, nine hundred forty-two thousand, nine hundred ninety-seven".