85944538 has 8 divisors (see below), whose sum is σ = 130099860. Its totient is φ = 42577920.

The previous prime is 85944517. The next prime is 85944559. The reversal of 85944538 is 83544958.

It is an interprime number because it is at equal distance from previous prime (85944517) and next prime (85944559).

It can be written as a sum of positive squares in 2 ways, for example, as 83594449 + 2350089 = 9143^2 + 1533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85944538² = 14772927224066888, 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, 196903 + ... + 197338.

Almost surely, 2^85944538 is an apocalyptic number.

85944538 is a deficient number, since it is larger than the sum of its proper divisors (44155322).

85944538 is a wasteful number, since it uses less digits than its factorization.

85944538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394352.

The product of its digits is 691200, while the sum is 46.

The square root of 85944538 is about 9270.6277025884. The cubic root of 85944538 is about 441.3055884192.

The spelling of 85944538 in words is "eighty-five million, nine hundred forty-four thousand, five hundred thirty-eight".