7825881 has 8 divisors (see below), whose sum is σ = 11925184. Its totient is φ = 4471920.

The previous prime is 7825861. The next prime is 7825889. The reversal of 7825881 is 1885287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7825881 - 2⁵ = 7825849 is a prime.

It is a super-2 number, since 2×7825881² = 122488826852322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7825889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186310 + ... + 186351.

It is an arithmetic number, because the mean of its divisors is an integer number (1490648).

Almost surely, 2^7825881 is an apocalyptic number.

It is an amenable number.

7825881 is a deficient number, since it is larger than the sum of its proper divisors (4099303).

7825881 is a wasteful number, since it uses less digits than its factorization.

7825881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372671.

The product of its digits is 35840, while the sum is 39.

The square root of 7825881 is about 2797.4776138514. The cubic root of 7825881 is about 198.5383522855.

The spelling of 7825881 in words is "seven million, eight hundred twenty-five thousand, eight hundred eighty-one".