521464071 has 8 divisors (see below), whose sum is σ = 697150960. Its totient is φ = 346709952.

The previous prime is 521464067. The next prime is 521464087. The reversal of 521464071 is 170464125.

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

It is not a de Polignac number, because 521464071 - 2² = 521464067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521464271) 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, 231886 + ... + 234123.

It is an arithmetic number, because the mean of its divisors is an integer number (87143870).

Almost surely, 2^521464071 is an apocalyptic number.

521464071 is a deficient number, since it is larger than the sum of its proper divisors (175686889).

521464071 is a wasteful number, since it uses less digits than its factorization.

521464071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466385.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 521464071 is about 22835.5878181404. The cubic root of 521464071 is about 804.8991404313.

The spelling of 521464071 in words is "five hundred twenty-one million, four hundred sixty-four thousand, seventy-one".