4006546 has 4 divisors (see below), whose sum is σ = 6009822. Its totient is φ = 2003272.

The previous prime is 4006537. The next prime is 4006547. The reversal of 4006546 is 6456004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 1234321 = 1665^2 + 1111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4006546.

It is not an unprimeable number, because it can be changed into a prime (4006547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001635 + ... + 1001638.

Almost surely, 2^4006546 is an apocalyptic number.

4006546 is a deficient number, since it is larger than the sum of its proper divisors (2003276).

4006546 is a wasteful number, since it uses less digits than its factorization.

4006546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003275.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4006546 is about 2001.6358310142. The cubic root of 4006546 is about 158.8266507308.

The spelling of 4006546 in words is "four million, six thousand, five hundred forty-six".