7864873 has 4 divisors (see below), whose sum is σ = 8206848. Its totient is φ = 7522900.

The previous prime is 7864867. The next prime is 7864903. The reversal of 7864873 is 3784687.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7864873 - 2⁹ = 7864361 is a prime.

It is a super-2 number, since 2×7864873² = 123712454612258, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7 + 8³ + 6⁴ + 4⁵ + 8⁷ + 7⁸ + 3⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7864823) 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, 170953 + ... + 170998.

It is an arithmetic number, because the mean of its divisors is an integer number (2051712).

Almost surely, 2^7864873 is an apocalyptic number.

It is an amenable number.

7864873 is a deficient number, since it is larger than the sum of its proper divisors (341975).

7864873 is a wasteful number, since it uses less digits than its factorization.

7864873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341974.

The product of its digits is 225792, while the sum is 43.

The square root of 7864873 is about 2804.4380898854. The cubic root of 7864873 is about 198.8675414577.

The spelling of 7864873 in words is "seven million, eight hundred sixty-four thousand, eight hundred seventy-three".