3950905 has 16 divisors (see below), whose sum is σ = 5460480. Its totient is φ = 2688192.

The previous prime is 3950899. The next prime is 3950911. The reversal of 3950905 is 5090593.

3950905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3950899) and next prime (3950911).

It is a cyclic number.

It is not a de Polignac number, because 3950905 - 2⁷ = 3950777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5136 + ... + 5854.

It is an arithmetic number, because the mean of its divisors is an integer number (341280).

Almost surely, 2^3950905 is an apocalyptic number.

3950905 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3950905 is a deficient number, since it is larger than the sum of its proper divisors (1509575).

3950905 is a wasteful number, since it uses less digits than its factorization.

3950905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 3950905 is about 1987.6883558546. The cubic root of 3950905 is about 158.0879844304.

The spelling of 3950905 in words is "three million, nine hundred fifty thousand, nine hundred five".