3917955 has 16 divisors (see below), whose sum is σ = 6314400. Its totient is φ = 2074368.

The previous prime is 3917923. The next prime is 3917989. The reversal of 3917955 is 5597193.

3917955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3917955 - 2⁵ = 3917923 is a prime.

3917955 is a lucky number.

It is a plaindrome in base 11.

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, 1359 + ... + 3111.

It is an arithmetic number, because the mean of its divisors is an integer number (394650).

Almost surely, 2^3917955 is an apocalyptic number.

3917955 is a deficient number, since it is larger than the sum of its proper divisors (2396445).

3917955 is a wasteful number, since it uses less digits than its factorization.

3917955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its digits is 42525, while the sum is 39.

The square root of 3917955 is about 1979.3824794617. The cubic root of 3917955 is about 157.6472797199.

The spelling of 3917955 in words is "three million, nine hundred seventeen thousand, nine hundred fifty-five".