3642655 has 16 divisors (see below), whose sum is σ = 4589568. Its totient is φ = 2772000.

The previous prime is 3642649. The next prime is 3642673. The reversal of 3642655 is 5562463.

It is not a de Polignac number, because 3642655 - 2¹⁵ = 3609887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a d-powerful number, because it can be written as 3⁸ + 6² + 4³ + 2⁷ + 6⁸ + 5⁵ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10840 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (286848).

Almost surely, 2^3642655 is an apocalyptic number.

3642655 is a deficient number, since it is larger than the sum of its proper divisors (946913).

3642655 is a wasteful number, since it uses less digits than its factorization.

3642655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its digits is 21600, while the sum is 31.

The square root of 3642655 is about 1908.5740750623. The cubic root of 3642655 is about 153.8648248814.

It can be divided in two parts, 36426 and 55, that added together give a square (36481 = 191²).

The spelling of 3642655 in words is "three million, six hundred forty-two thousand, six hundred fifty-five".