3987926 has 4 divisors (see below), whose sum is σ = 5981892. Its totient is φ = 1993962.

The previous prime is 3987913. The next prime is 3987931. The reversal of 3987926 is 6297893.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996980 + ... + 996983.

It is an arithmetic number, because the mean of its divisors is an integer number (1495473).

Almost surely, 2^3987926 is an apocalyptic number.

3987926 is a deficient number, since it is larger than the sum of its proper divisors (1993966).

3987926 is a wasteful number, since it uses less digits than its factorization.

3987926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993965.

The product of its digits is 163296, while the sum is 44.

The square root of 3987926 is about 1996.9792187201. The cubic root of 3987926 is about 158.5802252203.

It can be divided in two parts, 3987 and 926, that added together give a cube (4913 = 17³).

The spelling of 3987926 in words is "three million, nine hundred eighty-seven thousand, nine hundred twenty-six".