6355691 has 4 divisors (see below), whose sum is σ = 6363000. Its totient is φ = 6348384.

The previous prime is 6355673. The next prime is 6355711. The reversal of 6355691 is 1965536.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6355691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6355621) 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, 2141 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (1590750).

Almost surely, 2^6355691 is an apocalyptic number.

6355691 is a deficient number, since it is larger than the sum of its proper divisors (7309).

6355691 is a wasteful number, since it uses less digits than its factorization.

6355691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308.

The product of its digits is 24300, while the sum is 35.

The square root of 6355691 is about 2521.0495830110. The cubic root of 6355691 is about 185.2340937253.

The spelling of 6355691 in words is "six million, three hundred fifty-five thousand, six hundred ninety-one".