72537858 has 24 divisors (see below), whose sum is σ = 165438000. Its totient is φ = 22906584.

The previous prime is 72537851. The next prime is 72537869. The reversal of 72537858 is 85873527.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72537851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105708 + ... + 106391.

It is an arithmetic number, because the mean of its divisors is an integer number (6893250).

Almost surely, 2^72537858 is an apocalyptic number.

72537858 is an abundant number, since it is smaller than the sum of its proper divisors (92900142).

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

72537858 is a wasteful number, since it uses less digits than its factorization.

72537858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212126 (or 212123 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 72537858 is about 8516.9159911320. The cubic root of 72537858 is about 417.0501121565.

It can be divided in two parts, 725 and 37858, that added together give a palindrome (38583).

The spelling of 72537858 in words is "seventy-two million, five hundred thirty-seven thousand, eight hundred fifty-eight".