1922623 has 4 divisors (see below), whose sum is σ = 1947040. Its totient is φ = 1898208.

The previous prime is 1922621. The next prime is 1922663. The reversal of 1922623 is 3262291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3262291 = 911 ⋅3581.

It is a 5-Lehmer number, since φ(1922623) divides (1922623-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 1922623 - 2¹ = 1922621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12090 + ... + 12247.

It is an arithmetic number, because the mean of its divisors is an integer number (486760).

2^1922623 is an apocalyptic number.

1922623 is a deficient number, since it is larger than the sum of its proper divisors (24417).

1922623 is an equidigital number, since it uses as much as digits as its factorization.

1922623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24416.

The product of its digits is 1296, while the sum is 25.

The square root of 1922623 is about 1386.5868166112. The cubic root of 1922623 is about 124.3458735867.

The spelling of 1922623 in words is "one million, nine hundred twenty-two thousand, six hundred twenty-three".