73856393 has 8 divisors (see below), whose sum is σ = 79888200. Its totient is φ = 67874688.

The previous prime is 73856369. The next prime is 73856407. The reversal of 73856393 is 39365837.

It can be written as a sum of positive squares in 4 ways, for example, as 28590409 + 45265984 = 5347^2 + 6728^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73856393 - 2¹⁴ = 73840009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73856303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9428 + ... + 15381.

It is an arithmetic number, because the mean of its divisors is an integer number (9986025).

Almost surely, 2^73856393 is an apocalyptic number.

It is an amenable number.

73856393 is a deficient number, since it is larger than the sum of its proper divisors (6031807).

73856393 is a wasteful number, since it uses less digits than its factorization.

73856393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25051.

The product of its digits is 408240, while the sum is 44.

The square root of 73856393 is about 8593.9742261657. The cubic root of 73856393 is about 419.5618882034.

The spelling of 73856393 in words is "seventy-three million, eight hundred fifty-six thousand, three hundred ninety-three".