274497973 has 2 divisors, whose sum is σ = 274497974. Its totient is φ = 274497972.

The previous prime is 274497967. The next prime is 274497989. The reversal of 274497973 is 379794472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164814244 + 109683729 = 12838^2 + 10473^2 .

It is a cyclic number.

It is not a de Polignac number, because 274497973 - 2¹³ = 274489781 is a prime.

It is a super-2 number, since 2×274497973² = 150698274362217458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 274497973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274497943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137248986 + 137248987.

It is an arithmetic number, because the mean of its divisors is an integer number (137248987).

Almost surely, 2^274497973 is an apocalyptic number.

It is an amenable number.

274497973 is a deficient number, since it is larger than the sum of its proper divisors (1).

274497973 is an equidigital number, since it uses as much as digits as its factorization.

274497973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 52.

The square root of 274497973 is about 16567.9803536822. The cubic root of 274497973 is about 649.8997660037.

The spelling of 274497973 in words is "two hundred seventy-four million, four hundred ninety-seven thousand, nine hundred seventy-three".