73811913 has 16 divisors (see below), whose sum is σ = 112890240. Its totient is φ = 42022656.

The previous prime is 73811893. The next prime is 73811993. The reversal of 73811913 is 31911837.

It is not a de Polignac number, because 73811913 - 2⁹ = 73811401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73811993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (7055640).

Almost surely, 2^73811913 is an apocalyptic number.

It is an amenable number.

73811913 is a deficient number, since it is larger than the sum of its proper divisors (39078327).

73811913 is a wasteful number, since it uses less digits than its factorization.

73811913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976.

The product of its digits is 4536, while the sum is 33.

The square root of 73811913 is about 8591.3859766629. The cubic root of 73811913 is about 419.4776442641.

The spelling of 73811913 in words is "seventy-three million, eight hundred eleven thousand, nine hundred thirteen".