999740587 has 2 divisors, whose sum is σ = 999740588. Its totient is φ = 999740586.

The previous prime is 999740551. The next prime is 999740603. The reversal of 999740587 is 785047999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999740587 - 2²⁷ = 865522859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999740507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499870293 + 499870294.

It is an arithmetic number, because the mean of its divisors is an integer number (499870294).

Almost surely, 2^999740587 is an apocalyptic number.

999740587 is a deficient number, since it is larger than the sum of its proper divisors (1).

999740587 is an equidigital number, since it uses as much as digits as its factorization.

999740587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The square root of 999740587 is about 31618.6746559687. The cubic root of 999740587 is about 999.9135215217.

The spelling of 999740587 in words is "nine hundred ninety-nine million, seven hundred forty thousand, five hundred eighty-seven".