3207987 has 6 divisors (see below), whose sum is σ = 4633772. Its totient is φ = 2138652.

The previous prime is 3207983. The next prime is 3207989. The reversal of 3207987 is 7897023.

It is not a de Polignac number, because 3207987 - 2² = 3207983 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3207983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178213 + ... + 178230.

Almost surely, 2^3207987 is an apocalyptic number.

3207987 is a deficient number, since it is larger than the sum of its proper divisors (1425785).

3207987 is a wasteful number, since it uses less digits than its factorization.

3207987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356449 (or 356446 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3207987 is about 1791.0854250984. The cubic root of 3207987 is about 147.4837595832.

Adding to 3207987 its sum of digits (36), we get a palindrome (3208023).

The spelling of 3207987 in words is "three million, two hundred seven thousand, nine hundred eighty-seven".