85187623 has 4 divisors (see below), whose sum is σ = 85309848. Its totient is φ = 85065400.

The previous prime is 85187611. The next prime is 85187633. The reversal of 85187623 is 32678158.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85187623 - 2⁵ = 85187591 is a prime.

It is a super-2 number, since 2×85187623² = 14513862224780258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85187633) 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, 60061 + ... + 61462.

It is an arithmetic number, because the mean of its divisors is an integer number (21327462).

Almost surely, 2^85187623 is an apocalyptic number.

85187623 is a deficient number, since it is larger than the sum of its proper divisors (122225).

85187623 is a wasteful number, since it uses less digits than its factorization.

85187623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122224.

The product of its digits is 80640, while the sum is 40.

The square root of 85187623 is about 9229.7141342514. The cubic root of 85187623 is about 440.0062378592.

The spelling of 85187623 in words is "eighty-five million, one hundred eighty-seven thousand, six hundred twenty-three".