73929393 has 6 divisors (see below), whose sum is σ = 106786914. Its totient is φ = 49286256.

The previous prime is 73929343. The next prime is 73929407. The reversal of 73929393 is 39392937.

It can be written as a sum of positive squares in only one way, i.e., 73822464 + 106929 = 8592^2 + 327^2 .

It is not a de Polignac number, because 73929393 - 2¹⁰ = 73928369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73929313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4107180 + ... + 4107197.

It is an arithmetic number, because the mean of its divisors is an integer number (17797819).

Almost surely, 2^73929393 is an apocalyptic number.

It is an amenable number.

73929393 is a deficient number, since it is larger than the sum of its proper divisors (32857521).

73929393 is a wasteful number, since it uses less digits than its factorization.

73929393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214383 (or 8214380 counting only the distinct ones).

The product of its digits is 275562, while the sum is 45.

The square root of 73929393 is about 8598.2203391167. The cubic root of 73929393 is about 419.7000749880.

The spelling of 73929393 in words is "seventy-three million, nine hundred twenty-nine thousand, three hundred ninety-three".