7881152 has 14 divisors (see below), whose sum is σ = 15639288. Its totient is φ = 3940544.

The previous prime is 7881151. The next prime is 7881163. The reversal of 7881152 is 2511887.

It is a happy number.

It is a super-2 number, since 2×7881152² = 124225113694208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61508 + ... + 61635.

It is an arithmetic number, because the mean of its divisors is an integer number (1117092).

Almost surely, 2^7881152 is an apocalyptic number.

It is an amenable number.

7881152 is a deficient number, since it is larger than the sum of its proper divisors (7758136).

7881152 is a wasteful number, since it uses less digits than its factorization.

7881152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123155 (or 123145 counting only the distinct ones).

The product of its digits is 4480, while the sum is 32.

The square root of 7881152 is about 2807.3389535288. The cubic root of 7881152 is about 199.0046546557.

The spelling of 7881152 in words is "seven million, eight hundred eighty-one thousand, one hundred fifty-two".