274539947 has 16 divisors (see below), whose sum is σ = 306125568. Its totient is φ = 244090080.

The previous prime is 274539943. The next prime is 274539961. The reversal of 274539947 is 749935472.

It is a cyclic number.

It is not a de Polignac number, because 274539947 - 2² = 274539943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274539895 and 274539904.

It is not an unprimeable number, because it can be changed into a prime (274539943) 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, 257738 + ... + 258800.

It is an arithmetic number, because the mean of its divisors is an integer number (19132848).

Almost surely, 2^274539947 is an apocalyptic number.

274539947 is a deficient number, since it is larger than the sum of its proper divisors (31585621).

274539947 is a wasteful number, since it uses less digits than its factorization.

274539947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its digits is 1905120, while the sum is 50.

The square root of 274539947 is about 16569.2470257402. The cubic root of 274539947 is about 649.9328901128.

The spelling of 274539947 in words is "two hundred seventy-four million, five hundred thirty-nine thousand, nine hundred forty-seven".