274880621 has 2 divisors, whose sum is σ = 274880622. Its totient is φ = 274880620.

The previous prime is 274880597. The next prime is 274880629. The reversal of 274880621 is 126088472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273902500 + 978121 = 16550^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 274880621 - 2¹⁰ = 274879597 is a prime.

It is a Chen prime.

It is equal to p_14962619 and since 274880621 and 14962619 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274880629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137440310 + 137440311.

It is an arithmetic number, because the mean of its divisors is an integer number (137440311).

Almost surely, 2^274880621 is an apocalyptic number.

It is an amenable number.

274880621 is a deficient number, since it is larger than the sum of its proper divisors (1).

274880621 is an equidigital number, since it uses as much as digits as its factorization.

274880621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 274880621 is about 16579.5241487806. The cubic root of 274880621 is about 650.2016108326.

The spelling of 274880621 in words is "two hundred seventy-four million, eight hundred eighty thousand, six hundred twenty-one".