712534009 has 4 divisors (see below), whose sum is σ = 777309840. Its totient is φ = 647758180.

The previous prime is 712534007. The next prime is 712534013. The reversal of 712534009 is 900435217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 712534009 - 2¹ = 712534007 is a prime.

It is a super-2 number, since 2×712534009² = 1015409427963224162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712534003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32387899 + ... + 32387920.

It is an arithmetic number, because the mean of its divisors is an integer number (194327460).

Almost surely, 2^712534009 is an apocalyptic number.

It is an amenable number.

712534009 is a deficient number, since it is larger than the sum of its proper divisors (64775831).

712534009 is a wasteful number, since it uses less digits than its factorization.

712534009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64775830.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 712534009 is about 26693.3326694139. The cubic root of 712534009 is about 893.1722043462.

The spelling of 712534009 in words is "seven hundred twelve million, five hundred thirty-four thousand, nine".