73706939 has 4 divisors (see below), whose sum is σ = 73744440. Its totient is φ = 73669440.

The previous prime is 73706929. The next prime is 73706957. The reversal of 73706939 is 93960737.

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

It is a cyclic number.

It is not a de Polignac number, because 73706939 - 2⁸ = 73706683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73706939.

It is not an unprimeable number, because it can be changed into a prime (73706929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15629 + ... + 19790.

It is an arithmetic number, because the mean of its divisors is an integer number (18436110).

Almost surely, 2^73706939 is an apocalyptic number.

73706939 is a deficient number, since it is larger than the sum of its proper divisors (37501).

73706939 is a wasteful number, since it uses less digits than its factorization.

73706939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37500.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 73706939 is about 8585.2745442414. The cubic root of 73706939 is about 419.2786920180.

The spelling of 73706939 in words is "seventy-three million, seven hundred six thousand, nine hundred thirty-nine".