87283444 has 12 divisors (see below), whose sum is σ = 156874564. Its totient is φ = 42462144.

The previous prime is 87283439. The next prime is 87283447. The reversal of 87283444 is 44438278.

It can be written as a sum of positive squares in 2 ways, for example, as 58339044 + 28944400 = 7638^2 + 5380^2 .

It is a super-2 number, since 2×87283444² = 15236799193002272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87283397 and 87283406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87283447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294729 + ... + 295024.

Almost surely, 2^87283444 is an apocalyptic number.

It is an amenable number.

87283444 is a deficient number, since it is larger than the sum of its proper divisors (69591120).

87283444 is a wasteful number, since it uses less digits than its factorization.

87283444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589794 (or 589792 counting only the distinct ones).

The product of its digits is 172032, while the sum is 40.

The square root of 87283444 is about 9342.5608908907. The cubic root of 87283444 is about 443.5854489009.

The spelling of 87283444 in words is "eighty-seven million, two hundred eighty-three thousand, four hundred forty-four".