3986477 has 4 divisors (see below), whose sum is σ = 4348896. Its totient is φ = 3624060.

The previous prime is 3986473. The next prime is 3986497. The reversal of 3986477 is 7746893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3986477 - 2² = 3986473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986473) 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, 181193 + ... + 181214.

It is an arithmetic number, because the mean of its divisors is an integer number (1087224).

Almost surely, 2^3986477 is an apocalyptic number.

It is an amenable number.

3986477 is a deficient number, since it is larger than the sum of its proper divisors (362419).

3986477 is a wasteful number, since it uses less digits than its factorization.

3986477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362418.

The product of its digits is 254016, while the sum is 44.

The square root of 3986477 is about 1996.6163877921. The cubic root of 3986477 is about 158.5610163565.

The spelling of 3986477 in words is "three million, nine hundred eighty-six thousand, four hundred seventy-seven".