7687485 has 48 divisors (see below), whose sum is σ = 15213744. Its totient is φ = 3557376.

The previous prime is 7687483. The next prime is 7687487. The reversal of 7687485 is 5847867.

It is an interprime number because it is at equal distance from previous prime (7687483) and next prime (7687487).

It can be written as a sum of positive squares in 8 ways, for example, as 1077444 + 6610041 = 1038^2 + 2571^2 .

It is not a de Polignac number, because 7687485 - 2¹ = 7687483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7687485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9559 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (316953).

Almost surely, 2^7687485 is an apocalyptic number.

It is an amenable number.

7687485 is a deficient number, since it is larger than the sum of its proper divisors (7526259).

7687485 is a wasteful number, since it uses less digits than its factorization.

7687485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 811 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 7687485 is about 2772.6314215921. The cubic root of 7687485 is about 197.3610409591.

The spelling of 7687485 in words is "seven million, six hundred eighty-seven thousand, four hundred eighty-five".