537013806 has 64 divisors (see below), whose sum is σ = 1272483840. Its totient is φ = 147847680.

The previous prime is 537013801. The next prime is 537013831. The reversal of 537013806 is 608310735.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537013801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359910 + ... + 361398.

It is an arithmetic number, because the mean of its divisors is an integer number (19882560).

Almost surely, 2^537013806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537013806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636241920).

537013806 is an abundant number, since it is smaller than the sum of its proper divisors (735470034).

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

537013806 is a wasteful number, since it uses less digits than its factorization.

537013806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 537013806 is about 23173.5583370358. The cubic root of 537013806 is about 812.8214395537.

The spelling of 537013806 in words is "five hundred thirty-seven million, thirteen thousand, eight hundred six".