987899743 has 2 divisors, whose sum is σ = 987899744. Its totient is φ = 987899742.

The previous prime is 987899711. The next prime is 987899753. The reversal of 987899743 is 347998789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987899743 - 2⁵ = 987899711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987899753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493949871 + 493949872.

It is an arithmetic number, because the mean of its divisors is an integer number (493949872).

Almost surely, 2^987899743 is an apocalyptic number.

987899743 is a deficient number, since it is larger than the sum of its proper divisors (1).

987899743 is an equidigital number, since it uses as much as digits as its factorization.

987899743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 64.

The square root of 987899743 is about 31430.8724505064. The cubic root of 987899743 is about 995.9502022785.

The spelling of 987899743 in words is "nine hundred eighty-seven million, eight hundred ninety-nine thousand, seven hundred forty-three".