93939393 has 32 divisors (see below), whose sum is σ = 133327872. Its totient is φ = 58752000.

The previous prime is 93939367. The next prime is 93939407. The reversal of 93939393 is 39393939.

It is not a de Polignac number, because 93939393 - 2⁹ = 93938881 is a prime.

93939393 is an undulating number in base 10.

93939393 is a modest number, since divided by 939393 gives 93 as remainder.

It is not an unprimeable number, because it can be changed into a prime (93932393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685621 + ... + 685757.

It is an arithmetic number, because the mean of its divisors is an integer number (4166496).

Almost surely, 2^93939393 is an apocalyptic number.

93939393 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

93939393 is a deficient number, since it is larger than the sum of its proper divisors (39388479).

93939393 is a wasteful number, since it uses less digits than its factorization.

93939393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 531441, while the sum is 48.

The square root of 93939393 is about 9692.2336434900. The cubic root of 93939393 is about 454.5858534796.

The spelling of 93939393 in words is "ninety-three million, nine hundred thirty-nine thousand, three hundred ninety-three".