10299987 has 8 divisors (see below), whose sum is σ = 15259280. Its totient is φ = 6866640.

The previous prime is 10299983. The next prime is 10299997. The reversal of 10299987 is 78999201.

10299987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10299987 - 2² = 10299983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10299983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190714 + ... + 190767.

It is an arithmetic number, because the mean of its divisors is an integer number (1907410).

Almost surely, 2^10299987 is an apocalyptic number.

10299987 is a deficient number, since it is larger than the sum of its proper divisors (4959293).

10299987 is an equidigital number, since it uses as much as digits as its factorization.

10299987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381490 (or 381484 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 10299987 is about 3209.3592818505. The cubic root of 10299987 is about 217.5766198545.

The spelling of 10299987 in words is "ten million, two hundred ninety-nine thousand, nine hundred eighty-seven".