2371639 has 2 divisors, whose sum is σ = 2371640. Its totient is φ = 2371638.

The previous prime is 2371631. The next prime is 2371651. The reversal of 2371639 is 9361732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2371639 - 2³ = 2371631 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2371639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2371631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1185819 + 1185820.

It is an arithmetic number, because the mean of its divisors is an integer number (1185820).

2^2371639 is an apocalyptic number.

2371639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2371639 is an equidigital number, since it uses as much as digits as its factorization.

2371639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 31.

The square root of 2371639 is about 1540.0126622856. The cubic root of 2371639 is about 133.3571158966.

The spelling of 2371639 in words is "two million, three hundred seventy-one thousand, six hundred thirty-nine".