7881973 has 4 divisors (see below), whose sum is σ = 8598528. Its totient is φ = 7165420.

The previous prime is 7881971. The next prime is 7881977. The reversal of 7881973 is 3791887.

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 7881973 - 2¹ = 7881971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881971) 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, 358261 + ... + 358282.

It is an arithmetic number, because the mean of its divisors is an integer number (2149632).

Almost surely, 2^7881973 is an apocalyptic number.

It is an amenable number.

7881973 is a deficient number, since it is larger than the sum of its proper divisors (716555).

7881973 is a wasteful number, since it uses less digits than its factorization.

7881973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716554.

The product of its digits is 84672, while the sum is 43.

The square root of 7881973 is about 2807.4851736029. The cubic root of 7881973 is about 199.0115646924.

The spelling of 7881973 in words is "seven million, eight hundred eighty-one thousand, nine hundred seventy-three".