945987799 has 2 divisors, whose sum is σ = 945987800. Its totient is φ = 945987798.

The previous prime is 945987787. The next prime is 945987829. The reversal of 945987799 is 997789549.

It is a weak prime.

It is an emirp because it is prime and its reverse (997789549) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 945987799 - 2⁵ = 945987767 is a prime.

It is a super-3 number, since 3×945987799³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945987709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472993899 + 472993900.

It is an arithmetic number, because the mean of its divisors is an integer number (472993900).

Almost surely, 2^945987799 is an apocalyptic number.

945987799 is a deficient number, since it is larger than the sum of its proper divisors (1).

945987799 is an equidigital number, since it uses as much as digits as its factorization.

945987799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 67.

The square root of 945987799 is about 30756.9146534564. The cubic root of 945987799 is about 981.6616952631.

The spelling of 945987799 in words is "nine hundred forty-five million, nine hundred eighty-seven thousand, seven hundred ninety-nine".