2570989 has 2 divisors, whose sum is σ = 2570990. Its totient is φ = 2570988.

The previous prime is 2570969. The next prime is 2571001. The reversal of 2570989 is 9890752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 220900 = 1533^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2570989 - 2⁵ = 2570957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2570969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1285494 + 1285495.

It is an arithmetic number, because the mean of its divisors is an integer number (1285495).

2^2570989 is an apocalyptic number.

It is an amenable number.

2570989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2570989 is an equidigital number, since it uses as much as digits as its factorization.

2570989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2570989 is about 1603.4303851431. The cubic root of 2570989 is about 136.9935351346.

The spelling of 2570989 in words is "two million, five hundred seventy thousand, nine hundred eighty-nine".