85023436 has 6 divisors (see below), whose sum is σ = 148791020. Its totient is φ = 42511716.

The previous prime is 85023413. The next prime is 85023437. The reversal of 85023436 is 63432058.

It is a junction number, because it is equal to n+sod(n) for n = 85023398 and 85023407.

It is not an unprimeable number, because it can be changed into a prime (85023437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10627926 + ... + 10627933.

Almost surely, 2^85023436 is an apocalyptic number.

It is an amenable number.

85023436 is a deficient number, since it is larger than the sum of its proper divisors (63767584).

85023436 is a wasteful number, since it uses less digits than its factorization.

85023436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21255863 (or 21255861 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 85023436 is about 9220.8153652483. The cubic root of 85023436 is about 439.7233729536.

The spelling of 85023436 in words is "eighty-five million, twenty-three thousand, four hundred thirty-six".