4087513 has 2 divisors, whose sum is σ = 4087514. Its totient is φ = 4087512.

The previous prime is 4087487. The next prime is 4087597. The reversal of 4087513 is 3157804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4052169 + 35344 = 2013^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 4087513 - 2⁵ = 4087481 is a prime.

4087513 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4087613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043756 + 2043757.

It is an arithmetic number, because the mean of its divisors is an integer number (2043757).

Almost surely, 2^4087513 is an apocalyptic number.

It is an amenable number.

4087513 is a deficient number, since it is larger than the sum of its proper divisors (1).

4087513 is an equidigital number, since it uses as much as digits as its factorization.

4087513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 4087513 is about 2021.7598769389. The cubic root of 4087513 is about 159.8894157747.

It can be divided in two parts, 408 and 7513, that added together give a square (7921 = 89²).

The spelling of 4087513 in words is "four million, eighty-seven thousand, five hundred thirteen".