7725487 has 18 divisors (see below), whose sum is σ = 9885624. Its totient is φ = 6015240.

The previous prime is 7725469. The next prime is 7725503. The reversal of 7725487 is 7845277.

It is not a de Polignac number, because 7725487 - 2¹¹ = 7723439 is a prime.

7725487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5278 + ... + 6580.

Almost surely, 2^7725487 is an apocalyptic number.

7725487 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7725487 is a deficient number, since it is larger than the sum of its proper divisors (2160137).

7725487 is a wasteful number, since it uses less digits than its factorization.

7725487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 1321 counting only the distinct ones).

The product of its digits is 109760, while the sum is 40.

The square root of 7725487 is about 2779.4760297581. The cubic root of 7725487 is about 197.6857153930.

The spelling of 7725487 in words is "seven million, seven hundred twenty-five thousand, four hundred eighty-seven".