7872287 has 4 divisors (see below), whose sum is σ = 8064336. Its totient is φ = 7680240.

The previous prime is 7872283. The next prime is 7872313. The reversal of 7872287 is 7822787.

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 7872287 - 2² = 7872283 is a prime.

It is a super-2 number, since 2×7872287² = 123945805220738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 192007 = 7872287 / (7 + 8 + 7 + 2 + 2 + 8 + 7).

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 (7872283) 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, 95963 + ... + 96044.

It is an arithmetic number, because the mean of its divisors is an integer number (2016084).

Almost surely, 2^7872287 is an apocalyptic number.

7872287 is a deficient number, since it is larger than the sum of its proper divisors (192049).

7872287 is a wasteful number, since it uses less digits than its factorization.

7872287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192048.

The product of its digits is 87808, while the sum is 41.

The square root of 7872287 is about 2805.7596119411. The cubic root of 7872287 is about 198.9300108242.

The spelling of 7872287 in words is "seven million, eight hundred seventy-two thousand, two hundred eighty-seven".