4891906 has 8 divisors (see below), whose sum is σ = 7348860. Its totient is φ = 2442288.

The previous prime is 4891897. The next prime is 4891927. The reversal of 4891906 is 6091984.

It can be written as a sum of positive squares in 2 ways, for example, as 4583881 + 308025 = 2141^2 + 555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360 + ... + 3148.

Almost surely, 2^4891906 is an apocalyptic number.

4891906 is a deficient number, since it is larger than the sum of its proper divisors (2456954).

4891906 is a wasteful number, since it uses less digits than its factorization.

4891906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 4891906 is about 2211.7653582602. The cubic root of 4891906 is about 169.7563522342.

The spelling of 4891906 in words is "four million, eight hundred ninety-one thousand, nine hundred six".