274989897 has 40 divisors (see below), whose sum is σ = 505598016. Its totient is φ = 145045728.

The previous prime is 274989889. The next prime is 274989899. The reversal of 274989897 is 798989472.

It is not a de Polignac number, because 274989897 - 2³ = 274989889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (274989899) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11283 + ... + 26024.

Almost surely, 2^274989897 is an apocalyptic number.

274989897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

274989897 is a deficient number, since it is larger than the sum of its proper divisors (230608119).

274989897 is a wasteful number, since it uses less digits than its factorization.

274989897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37339 (or 37330 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The square root of 274989897 is about 16582.8193320678. The cubic root of 274989897 is about 650.2877597673.

The spelling of 274989897 in words is "two hundred seventy-four million, nine hundred eighty-nine thousand, eight hundred ninety-seven".