102388393 has 2 divisors, whose sum is σ = 102388394. Its totient is φ = 102388392.

The previous prime is 102388379. The next prime is 102388411. The reversal of 102388393 is 393883201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80138304 + 22250089 = 8952^2 + 4717^2 .

It is an emirp because it is prime and its reverse (393883201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102388393 - 2²¹ = 100291241 is a prime.

It is a super-2 number, since 2×102388393² = 20966766042244898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102388303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51194196 + 51194197.

It is an arithmetic number, because the mean of its divisors is an integer number (51194197).

Almost surely, 2^102388393 is an apocalyptic number.

It is an amenable number.

102388393 is a deficient number, since it is larger than the sum of its proper divisors (1).

102388393 is an equidigital number, since it uses as much as digits as its factorization.

102388393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 102388393 is about 10118.7149875861. The cubic root of 102388393 is about 467.8251608452.

The spelling of 102388393 in words is "one hundred two million, three hundred eighty-eight thousand, three hundred ninety-three".