85012437 has 8 divisors (see below), whose sum is σ = 113553504. Its totient is φ = 56573168.

The previous prime is 85012423. The next prime is 85012457. The reversal of 85012437 is 73421058.

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

It is a cyclic number.

It is not a de Polignac number, because 85012437 - 2¹⁰ = 85011413 is a prime.

It is a super-2 number, since 2×85012437² = 14454228889357938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85012457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23478 + ... + 26855.

It is an arithmetic number, because the mean of its divisors is an integer number (14194188).

Almost surely, 2^85012437 is an apocalyptic number.

It is an amenable number.

85012437 is a deficient number, since it is larger than the sum of its proper divisors (28541067).

85012437 is a wasteful number, since it uses less digits than its factorization.

85012437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50899.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 85012437 is about 9220.2189236482. The cubic root of 85012437 is about 439.7044106291.

The spelling of 85012437 in words is "eighty-five million, twelve thousand, four hundred thirty-seven".