545688697 has 2 divisors, whose sum is σ = 545688698. Its totient is φ = 545688696.

The previous prime is 545688643. The next prime is 545688713. The reversal of 545688697 is 796886545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309021241 + 236667456 = 17579^2 + 15384^2 .

It is a cyclic number.

It is not a de Polignac number, because 545688697 - 2²³ = 537300089 is a prime.

It is not a weakly prime, because it can be changed into another prime (545685697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272844348 + 272844349.

It is an arithmetic number, because the mean of its divisors is an integer number (272844349).

Almost surely, 2^545688697 is an apocalyptic number.

It is an amenable number.

545688697 is a deficient number, since it is larger than the sum of its proper divisors (1).

545688697 is an equidigital number, since it uses as much as digits as its factorization.

545688697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 58.

The square root of 545688697 is about 23359.9806720810. The cubic root of 545688697 is about 817.1748388717.

The spelling of 545688697 in words is "five hundred forty-five million, six hundred eighty-eight thousand, six hundred ninety-seven".