40064587 has 2 divisors, whose sum is σ = 40064588. Its totient is φ = 40064586.

The previous prime is 40064581. The next prime is 40064611. The reversal of 40064587 is 78546004.

40064587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40064587 - 2¹⁹ = 39540299 is a prime.

It is a super-2 number, since 2×40064587² = 3210342262961138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40064581) 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, 20032293 + 20032294.

It is an arithmetic number, because the mean of its divisors is an integer number (20032294).

Almost surely, 2^40064587 is an apocalyptic number.

40064587 is a deficient number, since it is larger than the sum of its proper divisors (1).

40064587 is an equidigital number, since it uses as much as digits as its factorization.

40064587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 40064587 is about 6329.6593115270. The cubic root of 40064587 is about 342.1791607136.

The spelling of 40064587 in words is "forty million, sixty-four thousand, five hundred eighty-seven".