10995987 has 4 divisors (see below), whose sum is σ = 14661320. Its totient is φ = 7330656.

The previous prime is 10995977. The next prime is 10995989. The reversal of 10995987 is 78959901.

10995987 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10995987 - 2¹⁵ = 10963219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10995989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832662 + ... + 1832667.

It is an arithmetic number, because the mean of its divisors is an integer number (3665330).

Almost surely, 2^10995987 is an apocalyptic number.

10995987 is a deficient number, since it is larger than the sum of its proper divisors (3665333).

10995987 is an equidigital number, since it uses as much as digits as its factorization.

10995987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665332.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 10995987 is about 3316.0197526553. The cubic root of 10995987 is about 222.3709608217.

The spelling of 10995987 in words is "ten million, nine hundred ninety-five thousand, nine hundred eighty-seven".