4645906 has 4 divisors (see below), whose sum is σ = 6968862. Its totient is φ = 2322952.

The previous prime is 4645891. The next prime is 4645909. The reversal of 4645906 is 6095464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4447881 + 198025 = 2109^2 + 445^2 .

It is not an unprimeable number, because it can be changed into a prime (4645909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161475 + ... + 1161478.

Almost surely, 2^4645906 is an apocalyptic number.

4645906 is a deficient number, since it is larger than the sum of its proper divisors (2322956).

4645906 is a wasteful number, since it uses less digits than its factorization.

4645906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322955.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 4645906 is about 2155.4363827309. The cubic root of 4645906 is about 166.8617546660.

The spelling of 4645906 in words is "four million, six hundred forty-five thousand, nine hundred six".