7871552 has 28 divisors (see below), whose sum is σ = 16823436. Its totient is φ = 3632640.

The previous prime is 7871519. The next prime is 7871573. The reversal of 7871552 is 2551787.

It can be written as a sum of positive squares in 2 ways, for example, as 3444736 + 4426816 = 1856^2 + 2104^2 .

It is a super-2 number, since 2×7871552² = 123922661777408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899 + ... + 5562.

It is an arithmetic number, because the mean of its divisors is an integer number (600837).

Almost surely, 2^7871552 is an apocalyptic number.

It is an amenable number.

7871552 is an abundant number, since it is smaller than the sum of its proper divisors (8951884).

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

7871552 is a wasteful number, since it uses less digits than its factorization.

7871552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486 (or 9476 counting only the distinct ones).

The product of its digits is 19600, while the sum is 35.

The square root of 7871552 is about 2805.6286283113. The cubic root of 7871552 is about 198.9238195650.

The spelling of 7871552 in words is "seven million, eight hundred seventy-one thousand, five hundred fifty-two".