3997534 has 16 divisors (see below), whose sum is σ = 6256800. Its totient is φ = 1913184.

The previous prime is 3997507. The next prime is 3997547. The reversal of 3997534 is 4357993.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8887 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (391050).

Almost surely, 2^3997534 is an apocalyptic number.

3997534 is a deficient number, since it is larger than the sum of its proper divisors (2259266).

3997534 is a wasteful number, since it uses less digits than its factorization.

3997534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 102060, while the sum is 40.

The square root of 3997534 is about 1999.3834049526. The cubic root of 3997534 is about 158.7074773993.

The spelling of 3997534 in words is "three million, nine hundred ninety-seven thousand, five hundred thirty-four".