3642547 has 8 divisors (see below), whose sum is σ = 3916800. Its totient is φ = 3376584.

The previous prime is 3642497. The next prime is 3642559. The reversal of 3642547 is 7452463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642547 is a prime.

It is a d-powerful number, because it can be written as 3⁵ + 6⁸ + 4 + 2¹³ + 5⁹ + 4⁵ + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147 + ... + 2932.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^3642547 is an apocalyptic number.

3642547 is a deficient number, since it is larger than the sum of its proper divisors (274253).

3642547 is a wasteful number, since it uses less digits than its factorization.

3642547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145.

The product of its digits is 20160, while the sum is 31.

The square root of 3642547 is about 1908.5457814787. The cubic root of 3642547 is about 153.8633042355.

The spelling of 3642547 in words is "three million, six hundred forty-two thousand, five hundred forty-seven".