2570991 has 8 divisors (see below), whose sum is σ = 3479424. Its totient is φ = 1688280.

The previous prime is 2570989. The next prime is 2571001. The reversal of 2570991 is 1990752.

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

It is not a de Polignac number, because 2570991 - 2¹ = 2570989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2570921) 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, 6195 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (434928).

2^2570991 is an apocalyptic number.

2570991 is a deficient number, since it is larger than the sum of its proper divisors (908433).

2570991 is a wasteful number, since it uses less digits than its factorization.

2570991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12861.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 2570991 is about 1603.4310088058. The cubic root of 2570991 is about 136.9935706575.

The spelling of 2570991 in words is "two million, five hundred seventy thousand, nine hundred ninety-one".