4007705 has 8 divisors (see below), whose sum is σ = 5179272. Its totient is φ = 2959488.

The previous prime is 4007687. The next prime is 4007723. The reversal of 4007705 is 5077004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4007687) and next prime (4007723).

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 3948169 = 244^2 + 1987^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4007705 - 2¹⁴ = 3991321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30764 + ... + 30893.

It is an arithmetic number, because the mean of its divisors is an integer number (647409).

Almost surely, 2^4007705 is an apocalyptic number.

It is an amenable number.

4007705 is a deficient number, since it is larger than the sum of its proper divisors (1171567).

4007705 is a wasteful number, since it uses less digits than its factorization.

4007705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61675.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 4007705 is about 2001.9253232826. The cubic root of 4007705 is about 158.8419641987.

The spelling of 4007705 in words is "four million, seven thousand, seven hundred five".