712621560 has 64 divisors (see below), whose sum is σ = 2443276800. Its totient is φ = 162884736.

The previous prime is 712621549. The next prime is 712621561. The reversal of 712621560 is 65126217.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712621561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423340 + ... + 425019.

It is an arithmetic number, because the mean of its divisors is an integer number (38176200).

Almost surely, 2^712621560 is an apocalyptic number.

712621560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712621560 is an abundant number, since it is smaller than the sum of its proper divisors (1730655240).

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

712621560 is a wasteful number, since it uses less digits than its factorization.

712621560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848380 (or 848376 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 712621560 is about 26694.9725603905. The cubic root of 712621560 is about 893.2087850174.

Adding to 712621560 its reverse (65126217), we get a palindrome (777747777).

The spelling of 712621560 in words is "seven hundred twelve million, six hundred twenty-one thousand, five hundred sixty".