541996691 has 2 divisors, whose sum is σ = 541996692. Its totient is φ = 541996690.

The previous prime is 541996687. The next prime is 541996727. The reversal of 541996691 is 196699145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541996691 - 2² = 541996687 is a prime.

It is not a weakly prime, because it can be changed into another prime (541996661) 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 as a sum of consecutive naturals, namely, 270998345 + 270998346.

It is an arithmetic number, because the mean of its divisors is an integer number (270998346).

Almost surely, 2^541996691 is an apocalyptic number.

541996691 is a deficient number, since it is larger than the sum of its proper divisors (1).

541996691 is an equidigital number, since it uses as much as digits as its factorization.

541996691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 541996691 is about 23280.8223866770. The cubic root of 541996691 is about 815.3277269799.

The spelling of 541996691 in words is "five hundred forty-one million, nine hundred ninety-six thousand, six hundred ninety-one".