102957823 has 2 divisors, whose sum is σ = 102957824. Its totient is φ = 102957822.

The previous prime is 102957817. The next prime is 102957839. The reversal of 102957823 is 328759201.

It is a weak prime.

It is an emirp because it is prime and its reverse (328759201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102957823 - 2⁹ = 102957311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102957923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51478911 + 51478912.

It is an arithmetic number, because the mean of its divisors is an integer number (51478912).

Almost surely, 2^102957823 is an apocalyptic number.

102957823 is a deficient number, since it is larger than the sum of its proper divisors (1).

102957823 is an equidigital number, since it uses as much as digits as its factorization.

102957823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 102957823 is about 10146.8134406818. The cubic root of 102957823 is about 468.6908232733.

The spelling of 102957823 in words is "one hundred two million, nine hundred fifty-seven thousand, eight hundred twenty-three".