72935818 has 4 divisors (see below), whose sum is σ = 109403730. Its totient is φ = 36467908.

The previous prime is 72935803. The next prime is 72935873. The reversal of 72935818 is 81853927.

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

It can be written as a sum of positive squares in only one way, i.e., 69105969 + 3829849 = 8313^2 + 1957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18233953 + ... + 18233956.

Almost surely, 2^72935818 is an apocalyptic number.

72935818 is a deficient number, since it is larger than the sum of its proper divisors (36467912).

72935818 is a wasteful number, since it uses less digits than its factorization.

72935818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36467911.

The product of its digits is 120960, while the sum is 43.

The square root of 72935818 is about 8540.2469519329. The cubic root of 72935818 is about 417.8114004605.

The spelling of 72935818 in words is "seventy-two million, nine hundred thirty-five thousand, eight hundred eighteen".