7537987 has 6 divisors (see below), whose sum is σ = 8007788. Its totient is φ = 7094304.

The previous prime is 7537963. The next prime is 7538009. The reversal of 7537987 is 7897357.

It is a happy number.

It is not a de Polignac number, because 7537987 - 2¹⁵ = 7505219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7537087) 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, 12753 + ... + 13330.

Almost surely, 2^7537987 is an apocalyptic number.

7537987 is a deficient number, since it is larger than the sum of its proper divisors (469801).

7537987 is a wasteful number, since it uses less digits than its factorization.

7537987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26117 (or 26100 counting only the distinct ones).

The product of its digits is 370440, while the sum is 46.

The square root of 7537987 is about 2745.5394734004. The cubic root of 7537987 is about 196.0733014042.

It can be divided in two parts, 75379 and 87, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 7537987 in words is "seven million, five hundred thirty-seven thousand, nine hundred eighty-seven".