713215520 has 24 divisors (see below), whose sum is σ = 1684972044. Its totient is φ = 285286144.

The previous prime is 713215511. The next prime is 713215567. The reversal of 713215520 is 25512317.

It can be written as a sum of positive squares in 2 ways, for example, as 698439184 + 14776336 = 26428^2 + 3844^2 .

It is a super-3 number, since 3×713215520³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 713215520.

It is an unprimeable number.

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, 2228639 + ... + 2228958.

Almost surely, 2^713215520 is an apocalyptic number.

It is an amenable number.

713215520 is an abundant number, since it is smaller than the sum of its proper divisors (971756524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

713215520 is a wasteful number, since it uses less digits than its factorization.

713215520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457612 (or 4457604 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 713215520 is about 26706.0951844331. The cubic root of 713215520 is about 893.4568750704.

Adding to 713215520 its reverse (25512317), we get a palindrome (738727837).

The spelling of 713215520 in words is "seven hundred thirteen million, two hundred fifteen thousand, five hundred twenty".