72634118 has 4 divisors (see below), whose sum is σ = 108951180. Its totient is φ = 36317058.

The previous prime is 72634117. The next prime is 72634127. The reversal of 72634118 is 81143627.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72634117) 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 as a sum of consecutive naturals, namely, 18158528 + ... + 18158531.

It is an arithmetic number, because the mean of its divisors is an integer number (27237795).

Almost surely, 2^72634118 is an apocalyptic number.

72634118 is a deficient number, since it is larger than the sum of its proper divisors (36317062).

72634118 is a wasteful number, since it uses less digits than its factorization.

72634118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36317061.

The product of its digits is 8064, while the sum is 32.

The square root of 72634118 is about 8522.5652241564. The cubic root of 72634118 is about 417.2345101154.

The spelling of 72634118 in words is "seventy-two million, six hundred thirty-four thousand, one hundred eighteen".