93720239 has 4 divisors (see below), whose sum is σ = 97795056. Its totient is φ = 89645424.

The previous prime is 93720229. The next prime is 93720251. The reversal of 93720239 is 93202739.

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 93720239 - 2¹² = 93716143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93720199 and 93720208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93720229) 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, 2037374 + ... + 2037419.

It is an arithmetic number, because the mean of its divisors is an integer number (24448764).

Almost surely, 2^93720239 is an apocalyptic number.

93720239 is a deficient number, since it is larger than the sum of its proper divisors (4074817).

93720239 is a wasteful number, since it uses less digits than its factorization.

93720239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074816.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 93720239 is about 9680.9213920990. The cubic root of 93720239 is about 454.2320726085.

The spelling of 93720239 in words is "ninety-three million, seven hundred twenty thousand, two hundred thirty-nine".