712217530 has 16 divisors (see below), whose sum is σ = 1293338664. Its totient is φ = 282365440.

The previous prime is 712217483. The next prime is 712217599. The reversal of 712217530 is 35712217.

It can be written as a sum of positive squares in 4 ways, for example, as 514337041 + 197880489 = 22679^2 + 14067^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314011 + ... + 316270.

Almost surely, 2^712217530 is an apocalyptic number.

712217530 is a deficient number, since it is larger than the sum of its proper divisors (581121134).

712217530 is a wasteful number, since it uses less digits than its factorization.

712217530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630401.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 712217530 is about 26687.4039576726. The cubic root of 712217530 is about 893.0399476852.

Adding to 712217530 its reverse (35712217), we get a palindrome (747929747).

The spelling of 712217530 in words is "seven hundred twelve million, two hundred seventeen thousand, five hundred thirty".