270898681 has 9 divisors (see below), whose sum is σ = 275229423. Its totient is φ = 266635800.

The previous prime is 270898673. The next prime is 270898687. The reversal of 270898681 is 186898072.

The square root of 270898681 is 16459.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 188815081 + 82083600 = 13741^2 + 9060^2 .

It is not a de Polignac number, because 270898681 - 2³ = 270898673 is a prime.

It is a super-2 number, since 2×270898681² = 146772190735079522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270898687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1793956 + ... + 1794106.

It is an arithmetic number, because the mean of its divisors is an integer number (30581047).

Almost surely, 2^270898681 is an apocalyptic number.

270898681 is the 16459-th square number.

270898681 is the 8230-th centered octagonal number.

It is an amenable number.

270898681 is a deficient number, since it is larger than the sum of its proper divisors (4330742).

270898681 is an frugal number, since it uses more digits than its factorization.

270898681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The cubic root of 270898681 is about 647.0467052913.

Multiplying 270898681 by its sum of digits (49), we get a square (13274035369 = 115213²).

The spelling of 270898681 in words is "two hundred seventy million, eight hundred ninety-eight thousand, six hundred eighty-one".