54843779 has 2 divisors, whose sum is σ = 54843780. Its totient is φ = 54843778.

The previous prime is 54843769. The next prime is 54843821. The reversal of 54843779 is 97734845.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54843779 - 2²⁴ = 38066563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54843749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27421889 + 27421890.

It is an arithmetic number, because the mean of its divisors is an integer number (27421890).

Almost surely, 2^54843779 is an apocalyptic number.

54843779 is a deficient number, since it is larger than the sum of its proper divisors (1).

54843779 is an equidigital number, since it uses as much as digits as its factorization.

54843779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 54843779 is about 7405.6585797618. The cubic root of 54843779 is about 379.9348433992.

The spelling of 54843779 in words is "fifty-four million, eight hundred forty-three thousand, seven hundred seventy-nine".