712212647 has 4 divisors (see below), whose sum is σ = 712488240. Its totient is φ = 711937056.

The previous prime is 712212643. The next prime is 712212673. The reversal of 712212647 is 746212217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746212217 = 1481 ⋅503857.

It is a cyclic number.

It is not a de Polignac number, because 712212647 - 2² = 712212643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712212643) 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, 133883 + ... + 139100.

It is an arithmetic number, because the mean of its divisors is an integer number (178122060).

Almost surely, 2^712212647 is an apocalyptic number.

712212647 is a deficient number, since it is larger than the sum of its proper divisors (275593).

712212647 is a wasteful number, since it uses less digits than its factorization.

712212647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275592.

The product of its digits is 9408, while the sum is 32.

The square root of 712212647 is about 26687.3124724091. The cubic root of 712212647 is about 893.0379067712.

The spelling of 712212647 in words is "seven hundred twelve million, two hundred twelve thousand, six hundred forty-seven".