274798987 has 2 divisors, whose sum is σ = 274798988. Its totient is φ = 274798986.

The previous prime is 274798949. The next prime is 274798991. The reversal of 274798987 is 789897472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274798987 - 2⁷ = 274798859 is a prime.

It is not a weakly prime, because it can be changed into another prime (274798087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137399493 + 137399494.

It is an arithmetic number, because the mean of its divisors is an integer number (137399494).

Almost surely, 2^274798987 is an apocalyptic number.

274798987 is a deficient number, since it is larger than the sum of its proper divisors (1).

274798987 is an equidigital number, since it uses as much as digits as its factorization.

274798987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14224896, while the sum is 61.

The square root of 274798987 is about 16577.0620738417. The cubic root of 274798987 is about 650.1372388719.

The spelling of 274798987 in words is "two hundred seventy-four million, seven hundred ninety-eight thousand, nine hundred eighty-seven".