274239697 has 4 divisors (see below), whose sum is σ = 274876416. Its totient is φ = 273602980.

The previous prime is 274239659. The next prime is 274239737. The reversal of 274239697 is 796932472.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274239697 is a prime.

It is a super-2 number, since 2×274239697² = 150414822821303618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 274239697.

It is not an unprimeable number, because it can be changed into a prime (274239617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317713 + ... + 318574.

It is an arithmetic number, because the mean of its divisors is an integer number (68719104).

Almost surely, 2^274239697 is an apocalyptic number.

It is an amenable number.

274239697 is a deficient number, since it is larger than the sum of its proper divisors (636719).

274239697 is an equidigital number, since it uses as much as digits as its factorization.

274239697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636718.

The product of its digits is 1143072, while the sum is 49.

The square root of 274239697 is about 16560.1840871411. The cubic root of 274239697 is about 649.6958711354.

The spelling of 274239697 in words is "two hundred seventy-four million, two hundred thirty-nine thousand, six hundred ninety-seven".