7882881 has 4 divisors (see below), whose sum is σ = 10510512. Its totient is φ = 5255252.

The previous prime is 7882879. The next prime is 7882907. The reversal of 7882881 is 1882887.

It is a happy number.

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 7882881 - 2¹ = 7882879 is a prime.

It is a super-2 number, since 2×7882881² = 124279625720322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7882801) 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, 1313811 + ... + 1313816.

It is an arithmetic number, because the mean of its divisors is an integer number (2627628).

Almost surely, 2^7882881 is an apocalyptic number.

It is an amenable number.

7882881 is a deficient number, since it is larger than the sum of its proper divisors (2627631).

7882881 is a wasteful number, since it uses less digits than its factorization.

7882881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627630.

The product of its digits is 57344, while the sum is 42.

The square root of 7882881 is about 2807.6468795060. The cubic root of 7882881 is about 199.0192064154.

The spelling of 7882881 in words is "seven million, eight hundred eighty-two thousand, eight hundred eighty-one".