15700093 has 2 divisors, whose sum is σ = 15700094. Its totient is φ = 15700092.

The previous prime is 15700067. The next prime is 15700109. The reversal of 15700093 is 39000751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15155449 + 544644 = 3893^2 + 738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15700093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15700193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7850046 + 7850047.

It is an arithmetic number, because the mean of its divisors is an integer number (7850047).

Almost surely, 2^15700093 is an apocalyptic number.

It is an amenable number.

15700093 is a deficient number, since it is larger than the sum of its proper divisors (1).

15700093 is an equidigital number, since it uses as much as digits as its factorization.

15700093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 15700093 is about 3962.3342867557. The cubic root of 15700093 is about 250.3998561194.

The spelling of 15700093 in words is "fifteen million, seven hundred thousand, ninety-three".