3641642 has 4 divisors (see below), whose sum is σ = 5462466. Its totient is φ = 1820820.

The previous prime is 3641641. The next prime is 3641647. The reversal of 3641642 is 2461463.

3641642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2461463 = 163 ⋅15101.

It can be written as a sum of positive squares in only one way, i.e., 3455881 + 185761 = 1859^2 + 431^2 .

It is not an unprimeable number, because it can be changed into a prime (3641641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910409 + ... + 910412.

Almost surely, 2^3641642 is an apocalyptic number.

3641642 is a deficient number, since it is larger than the sum of its proper divisors (1820824).

3641642 is a wasteful number, since it uses less digits than its factorization.

3641642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820823.

The product of its digits is 3456, while the sum is 26.

The square root of 3641642 is about 1908.3086752410. The cubic root of 3641642 is about 153.8505606045.

The spelling of 3641642 in words is "three million, six hundred forty-one thousand, six hundred forty-two".