72337834 has 4 divisors (see below), whose sum is σ = 108506754. Its totient is φ = 36168916.

The previous prime is 72337831. The next prime is 72337843. The reversal of 72337834 is 43873327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43873327 = 241 ⋅182047.

It can be written as a sum of positive squares in only one way, i.e., 72335025 + 2809 = 8505^2 + 53^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72337793 and 72337802.

It is not an unprimeable number, because it can be changed into a prime (72337831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18084457 + ... + 18084460.

Almost surely, 2^72337834 is an apocalyptic number.

72337834 is a deficient number, since it is larger than the sum of its proper divisors (36168920).

72337834 is a wasteful number, since it uses less digits than its factorization.

72337834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36168919.

The product of its digits is 84672, while the sum is 37.

The square root of 72337834 is about 8505.1651365508. The cubic root of 72337834 is about 416.6664190576. Note that the first 3 decimals are identical.

It can be divided in two parts, 7 and 2337834, that added together give a square (2337841 = 1529²).

The spelling of 72337834 in words is "seventy-two million, three hundred thirty-seven thousand, eight hundred thirty-four".