671270290 has 8 divisors (see below), whose sum is σ = 1208286540. Its totient is φ = 268508112.

The previous prime is 671270267. The next prime is 671270329. The reversal of 671270290 is 92072176.

It can be written as a sum of positive squares in 2 ways, for example, as 658589569 + 12680721 = 25663^2 + 3561^2 .

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

It is a super-3 number, since 3×671270290³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33563505 + ... + 33563524.

Almost surely, 2^671270290 is an apocalyptic number.

671270290 is a deficient number, since it is larger than the sum of its proper divisors (537016250).

671270290 is a wasteful number, since it uses less digits than its factorization.

671270290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67127036.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 671270290 is about 25908.8843835469. The cubic root of 671270290 is about 875.5866715935.

The spelling of 671270290 in words is "six hundred seventy-one million, two hundred seventy thousand, two hundred ninety".