275287896 has 112 divisors (see below), whose sum is σ = 833652960. Its totient is φ = 84680640.

The previous prime is 275287877. The next prime is 275287907. The reversal of 275287896 is 698782572.

It is a happy number.

275287896 is a `hidden beast` number, since 27 + 528 + 7 + 8 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 74001 + ... + 77631.

It is an arithmetic number, because the mean of its divisors is an integer number (7443330).

Almost surely, 2^275287896 is an apocalyptic number.

275287896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275287896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416826480).

275287896 is an abundant number, since it is smaller than the sum of its proper divisors (558365064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275287896 is a wasteful number, since it uses less digits than its factorization.

275287896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668 (or 3649 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 275287896 is about 16591.8020721078. The cubic root of 275287896 is about 650.5225746296.

The spelling of 275287896 in words is "two hundred seventy-five million, two hundred eighty-seven thousand, eight hundred ninety-six".