19992063 has 32 divisors (see below), whose sum is σ = 33327616. Its totient is φ = 10378368.

The previous prime is 19992059. The next prime is 19992067. The reversal of 19992063 is 36029991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19992059) and next prime (19992067).

It is not a de Polignac number, because 19992063 - 2² = 19992059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19992067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17745 + ... + 18837.

It is an arithmetic number, because the mean of its divisors is an integer number (1041488).

Almost surely, 2^19992063 is an apocalyptic number.

19992063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19992063 is a deficient number, since it is larger than the sum of its proper divisors (13335553).

19992063 is a wasteful number, since it uses less digits than its factorization.

19992063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 19992063 is about 4471.2484833657. The cubic root of 19992063 is about 271.4058496875.

The spelling of 19992063 in words is "nineteen million, nine hundred ninety-two thousand, sixty-three".