7872563 has 4 divisors (see below), whose sum is σ = 7884648. Its totient is φ = 7860480.

The previous prime is 7872559. The next prime is 7872577. The reversal of 7872563 is 3652787.

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: 3652787 = 1811 ⋅2017.

It is a cyclic number.

It is not a de Polignac number, because 7872563 - 2² = 7872559 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7872583) 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, 5006 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (1971162).

Almost surely, 2^7872563 is an apocalyptic number.

7872563 is a deficient number, since it is larger than the sum of its proper divisors (12085).

7872563 is a wasteful number, since it uses less digits than its factorization.

7872563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084.

The product of its digits is 70560, while the sum is 38.

The square root of 7872563 is about 2805.8087960515. The cubic root of 7872563 is about 198.9323356057.

It can be divided in two parts, 78725 and 63, that multiplied together give a triangular number (4959675 = T₃₁₄₉).

The spelling of 7872563 in words is "seven million, eight hundred seventy-two thousand, five hundred sixty-three".