3907705 has 16 divisors (see below), whose sum is σ = 5128704. Its totient is φ = 2845440.

The previous prime is 3907699. The next prime is 3907727. The reversal of 3907705 is 5077093.

It is not a de Polignac number, because 3907705 - 2⁹ = 3907193 is a prime.

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

It is a Duffinian 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, 1894 + ... + 3376.

It is an arithmetic number, because the mean of its divisors is an integer number (320544).

Almost surely, 2^3907705 is an apocalyptic number.

It is an amenable number.

3907705 is a deficient number, since it is larger than the sum of its proper divisors (1220999).

3907705 is a wasteful number, since it uses less digits than its factorization.

3907705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 3907705 is about 1976.7915924548. The cubic root of 3907705 is about 157.5096827842.

The spelling of 3907705 in words is "three million, nine hundred seven thousand, seven hundred five".