162993863 has 2 divisors, whose sum is σ = 162993864. Its totient is φ = 162993862.

The previous prime is 162993851. The next prime is 162993899. The reversal of 162993863 is 368399261.

It is a weak prime.

It is an emirp because it is prime and its reverse (368399261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162993863 - 2¹² = 162989767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162993463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81496931 + 81496932.

It is an arithmetic number, because the mean of its divisors is an integer number (81496932).

Almost surely, 2^162993863 is an apocalyptic number.

162993863 is a deficient number, since it is larger than the sum of its proper divisors (1).

162993863 is an equidigital number, since it uses as much as digits as its factorization.

162993863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 162993863 is about 12766.9049890723. The cubic root of 162993863 is about 546.2487014790.

The spelling of 162993863 in words is "one hundred sixty-two million, nine hundred ninety-three thousand, eight hundred sixty-three".