7405087 has 4 divisors (see below), whose sum is σ = 7509456. Its totient is φ = 7300720.

The previous prime is 7405061. The next prime is 7405127. The reversal of 7405087 is 7805047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7805047 = 41 ⋅190367.

It is a cyclic number.

It is not a de Polignac number, because 7405087 - 2¹⁵ = 7372319 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7405007) 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, 52078 + ... + 52219.

It is an arithmetic number, because the mean of its divisors is an integer number (1877364).

Almost surely, 2^7405087 is an apocalyptic number.

7405087 is a deficient number, since it is larger than the sum of its proper divisors (104369).

7405087 is a wasteful number, since it uses less digits than its factorization.

7405087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104368.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7405087 is about 2721.2289503090. The cubic root of 7405087 is about 194.9141590178.

The spelling of 7405087 in words is "seven million, four hundred five thousand, eighty-seven".