164402863 has 2 divisors, whose sum is σ = 164402864. Its totient is φ = 164402862.

The previous prime is 164402837. The next prime is 164402893. The reversal of 164402863 is 368204461.

It is a weak prime.

It is an emirp because it is prime and its reverse (368204461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164402863 is a prime.

It is a super-3 number, since 3×164402863³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164402813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82201431 + 82201432.

It is an arithmetic number, because the mean of its divisors is an integer number (82201432).

Almost surely, 2^164402863 is an apocalyptic number.

164402863 is a deficient number, since it is larger than the sum of its proper divisors (1).

164402863 is an equidigital number, since it uses as much as digits as its factorization.

164402863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 164402863 is about 12821.9679846738. The cubic root of 164402863 is about 547.8182027450.

The spelling of 164402863 in words is "one hundred sixty-four million, four hundred two thousand, eight hundred sixty-three".