2907389 has 2 divisors, whose sum is σ = 2907390. Its totient is φ = 2907388.

The previous prime is 2907383. The next prime is 2907419. The reversal of 2907389 is 9837092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1768900 + 1138489 = 1330^2 + 1067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2907389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2907383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1453694 + 1453695.

It is an arithmetic number, because the mean of its divisors is an integer number (1453695).

2^2907389 is an apocalyptic number.

It is an amenable number.

2907389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2907389 is an equidigital number, since it uses as much as digits as its factorization.

2907389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2907389 is about 1705.1067415268. The cubic root of 2907389 is about 142.7253273148.

The spelling of 2907389 in words is "two million, nine hundred seven thousand, three hundred eighty-nine".