82447632 has 50 divisors (see below), whose sum is σ = 238631118. Its totient is φ = 27482112.

The previous prime is 82447627. The next prime is 82447649. The reversal of 82447632 is 23674428.

It can be written as a sum of positive squares in only one way, i.e., 72182016 + 10265616 = 8496^2 + 3204^2 .

It is a super-2 number, since 2×82447632² = 13595224044814848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30513 + ... + 33104.

Almost surely, 2^82447632 is an apocalyptic number.

It is an amenable number.

82447632 is an abundant number, since it is smaller than the sum of its proper divisors (156183486).

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

82447632 is a wasteful number, since it uses less digits than its factorization.

82447632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63637 (or 63622 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 82447632 is about 9080.0678411563. The cubic root of 82447632 is about 435.2372546413.

It can be divided in two parts, 8244 and 7632, that added together give a square (15876 = 126²).

The spelling of 82447632 in words is "eighty-two million, four hundred forty-seven thousand, six hundred thirty-two".