1992263 has 8 divisors (see below), whose sum is σ = 2452128. Its totient is φ = 1576224.

The previous prime is 1992259. The next prime is 1992269. The reversal of 1992263 is 3622991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1992263 - 2² = 1992259 is a prime.

It is a super-2 number, since 2×1992263² = 7938223722338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (306516).

2^1992263 is an apocalyptic number.

1992263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1992263 is a deficient number, since it is larger than the sum of its proper divisors (459865).

1992263 is a wasteful number, since it uses less digits than its factorization.

1992263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21913.

The product of its digits is 5832, while the sum is 32.

The square root of 1992263 is about 1411.4754691457. The cubic root of 1992263 is about 125.8294282177.

The spelling of 1992263 in words is "one million, nine hundred ninety-two thousand, two hundred sixty-three".