2920023 has 16 divisors (see below), whose sum is σ = 4381440. Its totient is φ = 1921752.

The previous prime is 2920019. The next prime is 2920031. The reversal of 2920023 is 3200292.

It is not a de Polignac number, because 2920023 - 2² = 2920019 is a prime.

2920023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2919978 and 2920005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2920013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590 + ... + 2892.

It is an arithmetic number, because the mean of its divisors is an integer number (273840).

2^2920023 is an apocalyptic number.

2920023 is a deficient number, since it is larger than the sum of its proper divisors (1461417).

2920023 is a wasteful number, since it uses less digits than its factorization.

2920023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2920023 is about 1708.8074789162. The cubic root of 2920023 is about 142.9317652518.

The spelling of 2920023 in words is "two million, nine hundred twenty thousand, twenty-three".