2927389 has 2 divisors, whose sum is σ = 2927390. Its totient is φ = 2927388.

The previous prime is 2927341. The next prime is 2927459. The reversal of 2927389 is 9837292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2856100 + 71289 = 1690^2 + 267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2927389 - 2⁷ = 2927261 is a prime.

It is a Chen prime.

2927389 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2927339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1463694 + 1463695.

It is an arithmetic number, because the mean of its divisors is an integer number (1463695).

2^2927389 is an apocalyptic number.

It is an amenable number.

2927389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2927389 is an equidigital number, since it uses as much as digits as its factorization.

2927389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 2927389 is about 1710.9614256318. The cubic root of 2927389 is about 143.0518500746.

Subtracting 2927389 from its reverse (9837292), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2927389 in words is "two million, nine hundred twenty-seven thousand, three hundred eighty-nine".