274906789 has 2 divisors, whose sum is σ = 274906790. Its totient is φ = 274906788.

The previous prime is 274906777. The next prime is 274906823. The reversal of 274906789 is 987609472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238702500 + 36204289 = 15450^2 + 6017^2 .

It is a cyclic number.

It is not a de Polignac number, because 274906789 - 2⁵ = 274906757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274906769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137453394 + 137453395.

It is an arithmetic number, because the mean of its divisors is an integer number (137453395).

Almost surely, 2^274906789 is an apocalyptic number.

It is an amenable number.

274906789 is a deficient number, since it is larger than the sum of its proper divisors (1).

274906789 is an equidigital number, since it uses as much as digits as its factorization.

274906789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 274906789 is about 16580.3132961956. The cubic root of 274906789 is about 650.2222427416. Note that the first 4 decimals are identical.

The spelling of 274906789 in words is "two hundred seventy-four million, nine hundred six thousand, seven hundred eighty-nine".