713220646 has 4 divisors (see below), whose sum is σ = 1069830972. Its totient is φ = 356610322.

The previous prime is 713220637. The next prime is 713220649. The reversal of 713220646 is 646022317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646022317 = 2609 ⋅247613.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713220649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178305160 + ... + 178305163.

It is an arithmetic number, because the mean of its divisors is an integer number (267457743).

Almost surely, 2^713220646 is an apocalyptic number.

713220646 is a deficient number, since it is larger than the sum of its proper divisors (356610326).

713220646 is a wasteful number, since it uses less digits than its factorization.

713220646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356610325.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 713220646 is about 26706.1911548615. The cubic root of 713220646 is about 893.4590155402.

The spelling of 713220646 in words is "seven hundred thirteen million, two hundred twenty thousand, six hundred forty-six".