537985979 has 4 divisors (see below), whose sum is σ = 538361280. Its totient is φ = 537610680.

The previous prime is 537985967. The next prime is 537985993. The reversal of 537985979 is 979589735.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537985979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537985949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185492 + ... + 188369.

It is an arithmetic number, because the mean of its divisors is an integer number (134590320).

Almost surely, 2^537985979 is an apocalyptic number.

537985979 is a deficient number, since it is larger than the sum of its proper divisors (375301).

537985979 is a wasteful number, since it uses less digits than its factorization.

537985979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375300.

The product of its digits is 21432600, while the sum is 62.

The square root of 537985979 is about 23194.5247634005. The cubic root of 537985979 is about 813.3116359474.

The spelling of 537985979 in words is "five hundred thirty-seven million, nine hundred eighty-five thousand, nine hundred seventy-nine".