85603437 has 6 divisors (see below), whose sum is σ = 123649422. Its totient is φ = 57068952.

The previous prime is 85603433. The next prime is 85603451. The reversal of 85603437 is 73430658.

It is a happy number.

85603437 is a `hidden beast` number, since 8 + 5 + 603 + 43 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 85488516 + 114921 = 9246^2 + 339^2 .

It is not a de Polignac number, because 85603437 - 2² = 85603433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85603433) 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 5 ways as a sum of consecutive naturals, for example, 4755738 + ... + 4755755.

It is an arithmetic number, because the mean of its divisors is an integer number (20608237).

Almost surely, 2^85603437 is an apocalyptic number.

It is an amenable number.

85603437 is a deficient number, since it is larger than the sum of its proper divisors (38045985).

85603437 is a wasteful number, since it uses less digits than its factorization.

85603437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511499 (or 9511496 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 85603437 is about 9252.2125461967. The cubic root of 85603437 is about 440.7209890769.

The spelling of 85603437 in words is "eighty-five million, six hundred three thousand, four hundred thirty-seven".