93991701 has 4 divisors (see below), whose sum is σ = 125322272. Its totient is φ = 62661132.

The previous prime is 93991699. The next prime is 93991741. The reversal of 93991701 is 10719939.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 93991701 - 2¹ = 93991699 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 93991701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93991741) 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 3 ways as a sum of consecutive naturals, for example, 15665281 + ... + 15665286.

It is an arithmetic number, because the mean of its divisors is an integer number (31330568).

Almost surely, 2^93991701 is an apocalyptic number.

It is an amenable number.

93991701 is a deficient number, since it is larger than the sum of its proper divisors (31330571).

93991701 is a wasteful number, since it uses less digits than its factorization.

93991701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31330570.

The product of its (nonzero) digits is 15309, while the sum is 39.

The square root of 93991701 is about 9694.9317171396. The cubic root of 93991701 is about 454.6702130649.

The spelling of 93991701 in words is "ninety-three million, nine hundred ninety-one thousand, seven hundred one".