8400541 has 4 divisors (see below), whose sum is σ = 8406432. Its totient is φ = 8394652.

The previous prime is 8400529. The next prime is 8400563. The reversal of 8400541 is 1450048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8400541 - 2¹⁵ = 8367773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400571) 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, 690 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (2101608).

Almost surely, 2^8400541 is an apocalyptic number.

It is an amenable number.

8400541 is a deficient number, since it is larger than the sum of its proper divisors (5891).

8400541 is a wasteful number, since it uses less digits than its factorization.

8400541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8400541 is about 2898.3686791021. The cubic root of 8400541 is about 203.2836353203.

Adding to 8400541 its reverse (1450048), we get a palindrome (9850589).

The spelling of 8400541 in words is "eight million, four hundred thousand, five hundred forty-one".