545731679 has 2 divisors, whose sum is σ = 545731680. Its totient is φ = 545731678.

The previous prime is 545731663. The next prime is 545731729. The reversal of 545731679 is 976137545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545731679 - 2⁴ = 545731663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545731609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272865839 + 272865840.

It is an arithmetic number, because the mean of its divisors is an integer number (272865840).

Almost surely, 2^545731679 is an apocalyptic number.

545731679 is a deficient number, since it is larger than the sum of its proper divisors (1).

545731679 is an equidigital number, since it uses as much as digits as its factorization.

545731679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 47.

The square root of 545731679 is about 23360.9006461652. The cubic root of 545731679 is about 817.1962936480.

The spelling of 545731679 in words is "five hundred forty-five million, seven hundred thirty-one thousand, six hundred seventy-nine".