7872043 has 4 divisors (see below), whose sum is σ = 7883200. Its totient is φ = 7860888.

The previous prime is 7872017. The next prime is 7872103. The reversal of 7872043 is 3402787.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7872043 - 2¹³ = 7863851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7871996 and 7872014.

It is not an unprimeable number, because it can be changed into a prime (7872013) 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, 4443 + ... + 5956.

It is an arithmetic number, because the mean of its divisors is an integer number (1970800).

Almost surely, 2^7872043 is an apocalyptic number.

7872043 is a deficient number, since it is larger than the sum of its proper divisors (11157).

7872043 is a wasteful number, since it uses less digits than its factorization.

7872043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 7872043 is about 2805.7161296182. The cubic root of 7872043 is about 198.9279555373.

The spelling of 7872043 in words is "seven million, eight hundred seventy-two thousand, forty-three".