712829561 has 4 divisors (see below), whose sum is σ = 721852800. Its totient is φ = 703806324.

The previous prime is 712829543. The next prime is 712829587. The reversal of 712829561 is 165928217.

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 712829561 - 2⁶ = 712829497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712820561) 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, 4511501 + ... + 4511658.

It is an arithmetic number, because the mean of its divisors is an integer number (180463200).

Almost surely, 2^712829561 is an apocalyptic number.

It is an amenable number.

712829561 is a deficient number, since it is larger than the sum of its proper divisors (9023239).

712829561 is an equidigital number, since it uses as much as digits as its factorization.

712829561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023238.

The product of its digits is 60480, while the sum is 41.

The square root of 712829561 is about 26698.8681595307. The cubic root of 712829561 is about 893.2956802494.

The spelling of 712829561 in words is "seven hundred twelve million, eight hundred twenty-nine thousand, five hundred sixty-one".