270990831 has 8 divisors (see below), whose sum is σ = 361870384. Its totient is φ = 180385920.

The previous prime is 270990821. The next prime is 270990851. The reversal of 270990831 is 138099072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 270990831 - 2²¹ = 268893679 is a prime.

It is a super-2 number, since 2×270990831² = 146872060972141122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 270990831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270990821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66346 + ... + 70311.

It is an arithmetic number, because the mean of its divisors is an integer number (45233798).

Almost surely, 2^270990831 is an apocalyptic number.

270990831 is a deficient number, since it is larger than the sum of its proper divisors (90879553).

270990831 is a wasteful number, since it uses less digits than its factorization.

270990831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137321.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 270990831 is about 16461.7991422566. The cubic root of 270990831 is about 647.1200643225.

The spelling of 270990831 in words is "two hundred seventy million, nine hundred ninety thousand, eight hundred thirty-one".