6541406 has 8 divisors (see below), whose sum is σ = 9823224. Its totient is φ = 3267000.

The previous prime is 6541393. The next prime is 6541429. The reversal of 6541406 is 6041456.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 4031.

It is an arithmetic number, because the mean of its divisors is an integer number (1227903).

Almost surely, 2^6541406 is an apocalyptic number.

6541406 is a deficient number, since it is larger than the sum of its proper divisors (3281818).

6541406 is a wasteful number, since it uses less digits than its factorization.

6541406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6541406 is about 2557.6172504892. The cubic root of 6541406 is about 187.0209971942.

The spelling of 6541406 in words is "six million, five hundred forty-one thousand, four hundred six".