2540677 has 2 divisors, whose sum is σ = 2540678. Its totient is φ = 2540676.

The previous prime is 2540663. The next prime is 2540687. The reversal of 2540677 is 7760452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2515396 + 25281 = 1586^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540677 - 2¹⁵ = 2507909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270338 + 1270339.

It is an arithmetic number, because the mean of its divisors is an integer number (1270339).

2^2540677 is an apocalyptic number.

It is an amenable number.

2540677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540677 is an equidigital number, since it uses as much as digits as its factorization.

2540677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2540677 is about 1593.9501246902. The cubic root of 2540677 is about 136.4530200108.

The spelling of 2540677 in words is "two million, five hundred forty thousand, six hundred seventy-seven".