85158738 has 24 divisors (see below), whose sum is σ = 210869568. Its totient is φ = 24331032.

The previous prime is 85158737. The next prime is 85158739. The reversal of 85158738 is 83785158.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85158737) and next prime (85158739).

It is a junction number, because it is equal to n+sod(n) for n = 85158693 and 85158702.

It is not an unprimeable number, because it can be changed into a prime (85158737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337806 + ... + 338057.

It is an arithmetic number, because the mean of its divisors is an integer number (8786232).

Almost surely, 2^85158738 is an apocalyptic number.

85158738 is an abundant number, since it is smaller than the sum of its proper divisors (125710830).

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

85158738 is a wasteful number, since it uses less digits than its factorization.

85158738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675878 (or 675875 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 85158738 is about 9228.1492185595. The cubic root of 85158738 is about 439.9565005206.

The spelling of 85158738 in words is "eighty-five million, one hundred fifty-eight thousand, seven hundred thirty-eight".