270097821 has 20 divisors (see below), whose sum is σ = 461120352. Its totient is φ = 154341288.

The previous prime is 270097801. The next prime is 270097831. The reversal of 270097821 is 128790072.

It is not a de Polignac number, because 270097821 - 2¹³ = 270089629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270097801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 237615 + ... + 238748.

Almost surely, 2^270097821 is an apocalyptic number.

270097821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

270097821 is a deficient number, since it is larger than the sum of its proper divisors (191022531).

270097821 is an equidigital number, since it uses as much as digits as its factorization.

270097821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476382 (or 476373 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 270097821 is about 16434.6530538372. The cubic root of 270097821 is about 646.4084527538.

The spelling of 270097821 in words is "two hundred seventy million, ninety-seven thousand, eight hundred twenty-one".