2947923 has 18 divisors (see below), whose sum is σ = 4682132. Its totient is φ = 1785960.

The previous prime is 2947897. The next prime is 2947939. The reversal of 2947923 is 3297492.

It is not a de Polignac number, because 2947923 - 2⁵ = 2947891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2947123) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 265 + ... + 2442.

2^2947923 is an apocalyptic number.

2947923 is a deficient number, since it is larger than the sum of its proper divisors (1734209).

2947923 is a wasteful number, since it uses less digits than its factorization.

2947923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735 (or 2721 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 2947923 is about 1716.9516591914. The cubic root of 2947923 is about 143.3855473492.

The spelling of 2947923 in words is "two million, nine hundred forty-seven thousand, nine hundred twenty-three".