85375638 has 12 divisors (see below), whose sum is σ = 184980588. Its totient is φ = 28458540.

The previous prime is 85375637. The next prime is 85375639. The reversal of 85375638 is 83657358.

85375638 is a `hidden beast` number, since 8 + 5 + 3 + 7 + 5 + 638 = 666.

It is an interprime number because it is at equal distance from previous prime (85375637) and next prime (85375639).

It is a junction number, because it is equal to n+sod(n) for n = 85375593 and 85375602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85375637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2371528 + ... + 2371563.

It is an arithmetic number, because the mean of its divisors is an integer number (15415049).

Almost surely, 2^85375638 is an apocalyptic number.

85375638 is an abundant number, since it is smaller than the sum of its proper divisors (99604950).

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

85375638 is a wasteful number, since it uses less digits than its factorization.

85375638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743099 (or 4743096 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 85375638 is about 9239.8938305589. The cubic root of 85375638 is about 440.3297081101.

The spelling of 85375638 in words is "eighty-five million, three hundred seventy-five thousand, six hundred thirty-eight".