1992622 has 4 divisors (see below), whose sum is σ = 2988936. Its totient is φ = 996310.

The previous prime is 1992611. The next prime is 1992623. The reversal of 1992622 is 2262991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2262991 = 373 ⋅6067.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498154 + ... + 498157.

It is an arithmetic number, because the mean of its divisors is an integer number (747234).

2^1992622 is an apocalyptic number.

1992622 is a deficient number, since it is larger than the sum of its proper divisors (996314).

1992622 is an equidigital number, since it uses as much as digits as its factorization.

1992622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996313.

The product of its digits is 3888, while the sum is 31.

The square root of 1992622 is about 1411.6026353050. The cubic root of 1992622 is about 125.8369857962.

The spelling of 1992622 in words is "one million, nine hundred ninety-two thousand, six hundred twenty-two".