3997455 has 32 divisors (see below), whose sum is σ = 7976448. Its totient is φ = 1660800.

The previous prime is 3997453. The next prime is 3997457. The reversal of 3997455 is 5547993.

It is an interprime number because it is at equal distance from previous prime (3997453) and next prime (3997457).

It is not a de Polignac number, because 3997455 - 2¹ = 3997453 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (249264).

Almost surely, 2^3997455 is an apocalyptic number.

3997455 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3997455 is a deficient number, since it is larger than the sum of its proper divisors (3978993).

3997455 is a wasteful number, since it uses less digits than its factorization.

3997455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its digits is 170100, while the sum is 42.

The square root of 3997455 is about 1999.3636487643. The cubic root of 3997455 is about 158.7064319236.

The spelling of 3997455 in words is "three million, nine hundred ninety-seven thousand, four hundred fifty-five".