2571939 has 8 divisors (see below), whose sum is σ = 3810320. Its totient is φ = 1714608.

The previous prime is 2571937. The next prime is 2571949. The reversal of 2571939 is 9391752.

It is not a de Polignac number, because 2571939 - 2¹ = 2571937 is a prime.

It is a super-2 number, since 2×2571939² = 13229740439442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2571937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47602 + ... + 47655.

It is an arithmetic number, because the mean of its divisors is an integer number (476290).

2^2571939 is an apocalyptic number.

2571939 is a deficient number, since it is larger than the sum of its proper divisors (1238381).

2571939 is an equidigital number, since it uses as much as digits as its factorization.

2571939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95266 (or 95260 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 2571939 is about 1603.7265976469. The cubic root of 2571939 is about 137.0104064413.

The spelling of 2571939 in words is "two million, five hundred seventy-one thousand, nine hundred thirty-nine".