3972355 has 4 divisors (see below), whose sum is σ = 4766832. Its totient is φ = 3177880.

The previous prime is 3972343. The next prime is 3972359. The reversal of 3972355 is 5532793.

3972355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3972355 - 2⁹ = 3971843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3972355.

It is not an unprimeable number, because it can be changed into a prime (3972359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 397231 + ... + 397240.

It is an arithmetic number, because the mean of its divisors is an integer number (1191708).

Almost surely, 2^3972355 is an apocalyptic number.

3972355 is a deficient number, since it is larger than the sum of its proper divisors (794477).

3972355 is an equidigital number, since it uses as much as digits as its factorization.

3972355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794476.

The product of its digits is 28350, while the sum is 34.

The square root of 3972355 is about 1993.0767672119. The cubic root of 3972355 is about 158.3735619541.

The spelling of 3972355 in words is "three million, nine hundred seventy-two thousand, three hundred fifty-five".