3997355 has 4 divisors (see below), whose sum is σ = 4796832. Its totient is φ = 3197880.

The previous prime is 3997349. The next prime is 3997361. The reversal of 3997355 is 5537993.

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

It is an interprime number because it is at equal distance from previous prime (3997349) and next prime (3997361).

It is not a de Polignac number, because 3997355 - 2⁴ = 3997339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399731 + ... + 399740.

It is an arithmetic number, because the mean of its divisors is an integer number (1199208).

Almost surely, 2^3997355 is an apocalyptic number.

3997355 is a deficient number, since it is larger than the sum of its proper divisors (799477).

3997355 is an equidigital number, since it uses as much as digits as its factorization.

3997355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799476.

The product of its digits is 127575, while the sum is 41.

The square root of 3997355 is about 1999.3386406510. The cubic root of 3997355 is about 158.7051085170.

The spelling of 3997355 in words is "three million, nine hundred ninety-seven thousand, three hundred fifty-five".