73940687 has 4 divisors (see below), whose sum is σ = 74108040. Its totient is φ = 73773336.

The previous prime is 73940683. The next prime is 73940707. The reversal of 73940687 is 78604937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78604937 = 229 ⋅343253.

It is a cyclic number.

It is not a de Polignac number, because 73940687 - 2² = 73940683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73940683) 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, 83012 + ... + 83897.

It is an arithmetic number, because the mean of its divisors is an integer number (18527010).

Almost surely, 2^73940687 is an apocalyptic number.

73940687 is a deficient number, since it is larger than the sum of its proper divisors (167353).

73940687 is a wasteful number, since it uses less digits than its factorization.

73940687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167352.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 73940687 is about 8598.8770778515. The cubic root of 73940687 is about 419.7214460607.

The spelling of 73940687 in words is "seventy-three million, nine hundred forty thousand, six hundred eighty-seven".