73938091 has 2 divisors, whose sum is σ = 73938092. Its totient is φ = 73938090.

The previous prime is 73938089. The next prime is 73938157. The reversal of 73938091 is 19083937.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73938091 - 2¹ = 73938089 is a prime.

Together with 73938089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73938001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36969045 + 36969046.

It is an arithmetic number, because the mean of its divisors is an integer number (36969046).

Almost surely, 2^73938091 is an apocalyptic number.

73938091 is a deficient number, since it is larger than the sum of its proper divisors (1).

73938091 is an equidigital number, since it uses as much as digits as its factorization.

73938091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 73938091 is about 8598.7261265841. The cubic root of 73938091 is about 419.7165339721.

The spelling of 73938091 in words is "seventy-three million, nine hundred thirty-eight thousand, ninety-one".