93992861 has 2 divisors, whose sum is σ = 93992862. Its totient is φ = 93992860.

The previous prime is 93992851. The next prime is 93992863. The reversal of 93992861 is 16829939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90820900 + 3171961 = 9530^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 93992861 - 2¹⁰ = 93991837 is a prime.

Together with 93992863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93992863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46996430 + 46996431.

It is an arithmetic number, because the mean of its divisors is an integer number (46996431).

Almost surely, 2^93992861 is an apocalyptic number.

It is an amenable number.

93992861 is a deficient number, since it is larger than the sum of its proper divisors (1).

93992861 is an equidigital number, since it uses as much as digits as its factorization.

93992861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 47.

The square root of 93992861 is about 9694.9915420283. The cubic root of 93992861 is about 454.6720834969.

The spelling of 93992861 in words is "ninety-three million, nine hundred ninety-two thousand, eight hundred sixty-one".