3997590 has 16 divisors (see below), whose sum is σ = 9594288. Its totient is φ = 1066016.

The previous prime is 3997583. The next prime is 3997597. The reversal of 3997590 is 957993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3997583) and next prime (3997597).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66597 + ... + 66656.

It is an arithmetic number, because the mean of its divisors is an integer number (599643).

Almost surely, 2^3997590 is an apocalyptic number.

3997590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3997590 is an abundant number, since it is smaller than the sum of its proper divisors (5596698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997590 is a wasteful number, since it uses less digits than its factorization.

3997590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133263.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 3997590 is about 1999.3974092211. The cubic root of 3997590 is about 158.7082184876.

The spelling of 3997590 in words is "three million, nine hundred ninety-seven thousand, five hundred ninety".