3926487 has 4 divisors (see below), whose sum is σ = 5235320. Its totient is φ = 2617656.

The previous prime is 3926479. The next prime is 3926497. The reversal of 3926487 is 7846293.

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

It is not a de Polignac number, because 3926487 - 2³ = 3926479 is a prime.

It is a super-2 number, since 2×3926487² = 30834600322338, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3926467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654412 + ... + 654417.

It is an arithmetic number, because the mean of its divisors is an integer number (1308830).

Almost surely, 2^3926487 is an apocalyptic number.

3926487 is a deficient number, since it is larger than the sum of its proper divisors (1308833).

3926487 is a wasteful number, since it uses less digits than its factorization.

3926487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308832.

The product of its digits is 72576, while the sum is 39.

The square root of 3926487 is about 1981.5365250229. The cubic root of 3926487 is about 157.7616311623.

The spelling of 3926487 in words is "three million, nine hundred twenty-six thousand, four hundred eighty-seven".