545947939 has 16 divisors (see below), whose sum is σ = 571276800. Its totient is φ = 521098144.

The previous prime is 545947889. The next prime is 545947951. The reversal of 545947939 is 939749545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 545947939 - 2⁷ = 545947811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545947939.

It is not an unprimeable number, because it can be changed into a prime (545947739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573164 + ... + 1573510.

It is an arithmetic number, because the mean of its divisors is an integer number (35704800).

Almost surely, 2^545947939 is an apocalyptic number.

545947939 is a deficient number, since it is larger than the sum of its proper divisors (25328861).

545947939 is a wasteful number, since it uses less digits than its factorization.

545947939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its digits is 6123600, while the sum is 55.

The square root of 545947939 is about 23365.5288619796. The cubic root of 545947939 is about 817.3042243022.

The spelling of 545947939 in words is "five hundred forty-five million, nine hundred forty-seven thousand, nine hundred thirty-nine".