73906831 has 4 divisors (see below), whose sum is σ = 74403000. Its totient is φ = 73410664.

The previous prime is 73906813. The next prime is 73906853. The reversal of 73906831 is 13860937.

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 73906831 - 2¹¹ = 73904783 is a prime.

It is a super-2 number, since 2×73906831² = 10924439336925122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73906801) 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, 247861 + ... + 248158.

It is an arithmetic number, because the mean of its divisors is an integer number (18600750).

Almost surely, 2^73906831 is an apocalyptic number.

73906831 is a deficient number, since it is larger than the sum of its proper divisors (496169).

73906831 is a wasteful number, since it uses less digits than its factorization.

73906831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496168.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 73906831 is about 8596.9082233091. The cubic root of 73906831 is about 419.6573755232.

The spelling of 73906831 in words is "seventy-three million, nine hundred six thousand, eight hundred thirty-one".