659040787 has 2 divisors, whose sum is σ = 659040788. Its totient is φ = 659040786.

The previous prime is 659040761. The next prime is 659040841. The reversal of 659040787 is 787040956.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 659040787 - 2¹⁵ = 659008019 is a prime.

It is not a weakly prime, because it can be changed into another prime (659040737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329520393 + 329520394.

It is an arithmetic number, because the mean of its divisors is an integer number (329520394).

Almost surely, 2^659040787 is an apocalyptic number.

659040787 is a deficient number, since it is larger than the sum of its proper divisors (1).

659040787 is an equidigital number, since it uses as much as digits as its factorization.

659040787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 659040787 is about 25671.7897116660. The cubic root of 659040787 is about 870.2367730947.

The spelling of 659040787 in words is "six hundred fifty-nine million, forty thousand, seven hundred eighty-seven".