3997486 has 16 divisors (see below), whose sum is σ = 6422400. Its totient is φ = 1860408.

The previous prime is 3997471. The next prime is 3997493. The reversal of 3997486 is 6847993.

It is a d-powerful number, because it can be written as 3¹³ + 9³ + 9⁴ + 7⁴ + 4⁷ + 8⁷ + 6⁷ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (401400).

Almost surely, 2^3997486 is an apocalyptic number.

3997486 is a deficient number, since it is larger than the sum of its proper divisors (2424914).

3997486 is a wasteful number, since it uses less digits than its factorization.

3997486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its digits is 326592, while the sum is 46.

The square root of 3997486 is about 1999.3714012159. The cubic root of 3997486 is about 158.7068421752.

The spelling of 3997486 in words is "three million, nine hundred ninety-seven thousand, four hundred eighty-six".