4723891 has 4 divisors (see below), whose sum is σ = 4740984. Its totient is φ = 4706800.

The previous prime is 4723879. The next prime is 4723921. The reversal of 4723891 is 1983274.

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 4723891 - 2¹³ = 4715699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4723861) 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, 8125 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (1185246).

Almost surely, 2^4723891 is an apocalyptic number.

4723891 is a deficient number, since it is larger than the sum of its proper divisors (17093).

4723891 is a wasteful number, since it uses less digits than its factorization.

4723891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092.

The product of its digits is 12096, while the sum is 34.

The square root of 4723891 is about 2173.4514027233. The cubic root of 4723891 is about 167.7902119671.

The spelling of 4723891 in words is "four million, seven hundred twenty-three thousand, eight hundred ninety-one".