4645905 has 32 divisors (see below), whose sum is σ = 8339328. Its totient is φ = 2188800.

The previous prime is 4645891. The next prime is 4645909. The reversal of 4645905 is 5095464.

It is not a de Polignac number, because 4645905 - 2⁵ = 4645873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

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 in 31 ways as a sum of consecutive naturals, for example, 5725 + ... + 6485.

It is an arithmetic number, because the mean of its divisors is an integer number (260604).

Almost surely, 2^4645905 is an apocalyptic number.

It is an amenable number.

4645905 is a deficient number, since it is larger than the sum of its proper divisors (3693423).

4645905 is a wasteful number, since it uses less digits than its factorization.

4645905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 4645905 is about 2155.4361507593. The cubic root of 4645905 is about 166.8617426941.

The spelling of 4645905 in words is "four million, six hundred forty-five thousand, nine hundred five".