274985885 has 4 divisors (see below), whose sum is σ = 329983068. Its totient is φ = 219988704.

The previous prime is 274985873. The next prime is 274985923. The reversal of 274985885 is 588589472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219662041 + 55323844 = 14821^2 + 7438^2 .

It is a cyclic number.

It is not a de Polignac number, because 274985885 - 2⁸ = 274985629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 274985885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27498584 + ... + 27498593.

It is an arithmetic number, because the mean of its divisors is an integer number (82495767).

Almost surely, 2^274985885 is an apocalyptic number.

It is an amenable number.

274985885 is a deficient number, since it is larger than the sum of its proper divisors (54997183).

274985885 is an equidigital number, since it uses as much as digits as its factorization.

274985885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54997182.

The product of its digits is 6451200, while the sum is 56.

The square root of 274985885 is about 16582.6983630530. The cubic root of 274985885 is about 650.2845972667.

The spelling of 274985885 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, eight hundred eighty-five".