2361987 has 8 divisors (see below), whose sum is σ = 3499280. Its totient is φ = 1574640.

The previous prime is 2361977. The next prime is 2361991. The reversal of 2361987 is 7891632.

It is a de Polignac number, because none of the positive numbers 2^k-2361987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2361917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43714 + ... + 43767.

It is an arithmetic number, because the mean of its divisors is an integer number (437410).

2^2361987 is an apocalyptic number.

2361987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2361987 is a deficient number, since it is larger than the sum of its proper divisors (1137293).

2361987 is an equidigital number, since it uses as much as digits as its factorization.

2361987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87490 (or 87484 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2361987 is about 1536.8757269213. The cubic root of 2361987 is about 133.1759594630.

The spelling of 2361987 in words is "two million, three hundred sixty-one thousand, nine hundred eighty-seven".