539761971 has 8 divisors (see below), whose sum is σ = 822494464. Its totient is φ = 308435400.

The previous prime is 539761969. The next prime is 539761991. The reversal of 539761971 is 179167935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 539761971 - 2¹ = 539761969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 539761971.

It is not an unprimeable number, because it can be changed into a prime (539761991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12851455 + ... + 12851496.

It is an arithmetic number, because the mean of its divisors is an integer number (102811808).

Almost surely, 2^539761971 is an apocalyptic number.

539761971 is a deficient number, since it is larger than the sum of its proper divisors (282732493).

539761971 is a wasteful number, since it uses less digits than its factorization.

539761971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25702961.

The product of its digits is 357210, while the sum is 48.

The square root of 539761971 is about 23232.7779441030. Note that the first 3 decimals coincide. The cubic root of 539761971 is about 814.2056173733.

The spelling of 539761971 in words is "five hundred thirty-nine million, seven hundred sixty-one thousand, nine hundred seventy-one".