7881016 has 48 divisors (see below), whose sum is σ = 17571960. Its totient is φ = 3266880.

The previous prime is 7880989. The next prime is 7881023. The reversal of 7881016 is 6101887.

It is a super-2 number, since 2×7881016² = 124220826384512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94911 + ... + 94993.

Almost surely, 2^7881016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7881016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8785980).

7881016 is an abundant number, since it is smaller than the sum of its proper divisors (9690944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7881016 is a wasteful number, since it uses less digits than its factorization.

7881016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 7881016 is about 2807.3147311978. The cubic root of 7881016 is about 199.0035099505.

The spelling of 7881016 in words is "seven million, eight hundred eighty-one thousand, sixteen".