601906 has 4 divisors (see below), whose sum is σ = 902862. Its totient is φ = 300952.

The previous prime is 601903. The next prime is 601943. The reversal of 601906 is 609106.

601906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609106 = 2 ⋅304553.

It can be written as a sum of positive squares in only one way, i.e., 502681 + 99225 = 709^2 + 315^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (601903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150475 + ... + 150478.

2⁶⁰¹⁹⁰⁶ is an apocalyptic number.

601906 is a deficient number, since it is larger than the sum of its proper divisors (300956).

601906 is a wasteful number, since it uses less digits than its factorization.

601906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300955.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 601906 is about 775.8260114227. The cubic root of 601906 is about 84.4324822750.

The spelling of 601906 in words is "six hundred one thousand, nine hundred six".