93694821 has 16 divisors (see below), whose sum is σ = 136450560. Its totient is φ = 56715120.

The previous prime is 93694817. The next prime is 93694823. The reversal of 93694821 is 12849639.

It is not a de Polignac number, because 93694821 - 2² = 93694817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93694823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41910 + ... + 44088.

It is an arithmetic number, because the mean of its divisors is an integer number (8528160).

Almost surely, 2^93694821 is an apocalyptic number.

It is an amenable number.

93694821 is a deficient number, since it is larger than the sum of its proper divisors (42755739).

93694821 is a wasteful number, since it uses less digits than its factorization.

93694821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496.

The product of its digits is 93312, while the sum is 42.

The square root of 93694821 is about 9679.6085148109. The cubic root of 93694821 is about 454.1910045856.

The spelling of 93694821 in words is "ninety-three million, six hundred ninety-four thousand, eight hundred twenty-one".