3655487 has 4 divisors (see below), whose sum is σ = 3987816. Its totient is φ = 3323160.

The previous prime is 3655481. The next prime is 3655499. The reversal of 3655487 is 7845563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7845563 = 11 ⋅713233.

It is a cyclic number.

It is not a de Polignac number, because 3655487 - 2⁶ = 3655423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3655487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655481) 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, 166148 + ... + 166169.

It is an arithmetic number, because the mean of its divisors is an integer number (996954).

Almost surely, 2^3655487 is an apocalyptic number.

3655487 is a deficient number, since it is larger than the sum of its proper divisors (332329).

3655487 is a wasteful number, since it uses less digits than its factorization.

3655487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332328.

The product of its digits is 100800, while the sum is 38.

The square root of 3655487 is about 1911.9327917058. The cubic root of 3655487 is about 154.0452866195.

The spelling of 3655487 in words is "three million, six hundred fifty-five thousand, four hundred eighty-seven".