7875487 has 4 divisors (see below), whose sum is σ = 8088376. Its totient is φ = 7662600.

The previous prime is 7875467. The next prime is 7875551. The reversal of 7875487 is 7845787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7845787 = 613 ⋅12799.

It is a cyclic number.

It is not a de Polignac number, because 7875487 - 2¹⁵ = 7842719 is a prime.

It is a Duffinian number.

7875487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7875467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106389 + ... + 106462.

It is an arithmetic number, because the mean of its divisors is an integer number (2022094).

Almost surely, 2^7875487 is an apocalyptic number.

7875487 is a deficient number, since it is larger than the sum of its proper divisors (212889).

7875487 is a wasteful number, since it uses less digits than its factorization.

7875487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212888.

The product of its digits is 439040, while the sum is 46.

The square root of 7875487 is about 2806.3298095555. The cubic root of 7875487 is about 198.9569614761.

The spelling of 7875487 in words is "seven million, eight hundred seventy-five thousand, four hundred eighty-seven".