2215487 has 2 divisors, whose sum is σ = 2215488. Its totient is φ = 2215486.

The previous prime is 2215471. The next prime is 2215501. The reversal of 2215487 is 7845122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2215487 - 2⁴ = 2215471 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2⁷ + 1 + 5⁹ + 4⁹ + 8 + 7² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215417) 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 as a sum of consecutive naturals, namely, 1107743 + 1107744.

It is an arithmetic number, because the mean of its divisors is an integer number (1107744).

2^2215487 is an apocalyptic number.

2215487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215487 is an equidigital number, since it uses as much as digits as its factorization.

2215487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 29.

The square root of 2215487 is about 1488.4512084714. The cubic root of 2215487 is about 130.3636171033.

The spelling of 2215487 in words is "two million, two hundred fifteen thousand, four hundred eighty-seven".