2920423 has 4 divisors (see below), whose sum is σ = 3185928. Its totient is φ = 2654920.

The previous prime is 2920409. The next prime is 2920427. The reversal of 2920423 is 3240292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2920423 - 2⁵ = 2920391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2920394 and 2920403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2920427) 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, 132736 + ... + 132757.

It is an arithmetic number, because the mean of its divisors is an integer number (796482).

2^2920423 is an apocalyptic number.

2920423 is a deficient number, since it is larger than the sum of its proper divisors (265505).

2920423 is a wasteful number, since it uses less digits than its factorization.

2920423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265504.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2920423 is about 1708.9245155945. The cubic root of 2920423 is about 142.9382914670.

The spelling of 2920423 in words is "two million, nine hundred twenty thousand, four hundred twenty-three".