2923890 has 16 divisors (see below), whose sum is σ = 7017408. Its totient is φ = 779696.

The previous prime is 2923859. The next prime is 2923897. The reversal of 2923890 is 983292.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2923897) 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, 48702 + ... + 48761.

It is an arithmetic number, because the mean of its divisors is an integer number (438588).

2^2923890 is an apocalyptic number.

2923890 is an abundant number, since it is smaller than the sum of its proper divisors (4093518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2923890 is a wasteful number, since it uses less digits than its factorization.

2923890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97473.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2923890 is about 1709.9385953887. The cubic root of 2923890 is about 142.9948324864.

The spelling of 2923890 in words is "two million, nine hundred twenty-three thousand, eight hundred ninety".