4705645 has 16 divisors (see below), whose sum is σ = 6663168. Its totient is φ = 3121920.

The previous prime is 4705637. The next prime is 4705669. The reversal of 4705645 is 5465074.

It is a happy number.

It is not a de Polignac number, because 4705645 - 2³ = 4705637 is a prime.

It is a super-3 number, since 3×4705645³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (416448).

Almost surely, 2^4705645 is an apocalyptic number.

4705645 is the 1085-th decagonal number.

It is an amenable number.

4705645 is a deficient number, since it is larger than the sum of its proper divisors (1957523).

4705645 is a wasteful number, since it uses less digits than its factorization.

4705645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 4705645 is about 2169.2498703469. The cubic root of 4705645 is about 167.5739036764.

The spelling of 4705645 in words is "four million, seven hundred five thousand, six hundred forty-five".