3967955 has 4 divisors (see below), whose sum is σ = 4761552. Its totient is φ = 3174360.

The previous prime is 3967913. The next prime is 3967961. The reversal of 3967955 is 5597693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5597693 = 37 ⋅151289.

It is not a de Polignac number, because 3967955 - 2⁸ = 3967699 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396791 + ... + 396800.

It is an arithmetic number, because the mean of its divisors is an integer number (1190388).

Almost surely, 2^3967955 is an apocalyptic number.

3967955 is a deficient number, since it is larger than the sum of its proper divisors (793597).

3967955 is an equidigital number, since it uses as much as digits as its factorization.

3967955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793596.

The product of its digits is 255150, while the sum is 44.

The square root of 3967955 is about 1991.9726403744. The cubic root of 3967955 is about 158.3150659134.

The spelling of 3967955 in words is "three million, nine hundred sixty-seven thousand, nine hundred fifty-five".