93909939 has 4 divisors (see below), whose sum is σ = 125213256. Its totient is φ = 62606624.

The previous prime is 93909911. The next prime is 93909961. The reversal of 93909939 is 93990939.

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 93909939 - 2⁹ = 93909427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 93909891 and 93909900.

It is not an unprimeable number, because it can be changed into a prime (93909539) 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, 15651654 + ... + 15651659.

It is an arithmetic number, because the mean of its divisors is an integer number (31303314).

Almost surely, 2^93909939 is an apocalyptic number.

93909939 is a deficient number, since it is larger than the sum of its proper divisors (31303317).

93909939 is a wasteful number, since it uses less digits than its factorization.

93909939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303316.

The product of its (nonzero) digits is 531441, while the sum is 51.

The square root of 93909939 is about 9690.7140603776. The cubic root of 93909939 is about 454.5383378389.

The spelling of 93909939 in words is "ninety-three million, nine hundred nine thousand, nine hundred thirty-nine".