102993427 has 2 divisors, whose sum is σ = 102993428. Its totient is φ = 102993426.

The previous prime is 102993389. The next prime is 102993461. The reversal of 102993427 is 724399201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102993427 - 2¹⁵ = 102960659 is a prime.

It is not a weakly prime, because it can be changed into another prime (102993487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51496713 + 51496714.

It is an arithmetic number, because the mean of its divisors is an integer number (51496714).

Almost surely, 2^102993427 is an apocalyptic number.

102993427 is a deficient number, since it is larger than the sum of its proper divisors (1).

102993427 is an equidigital number, since it uses as much as digits as its factorization.

102993427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 102993427 is about 10148.5677314585. The cubic root of 102993427 is about 468.7448432736.

The spelling of 102993427 in words is "one hundred two million, nine hundred ninety-three thousand, four hundred twenty-seven".