1720316967 has 4 divisors (see below), whose sum is σ = 2293755960. Its totient is φ = 1146877976.

The previous prime is 1720316963. The next prime is 1720316999. The reversal of 1720316967 is 7696130271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1720316967 - 2² = 1720316963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720316963) 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, 286719492 + ... + 286719497.

It is an arithmetic number, because the mean of its divisors is an integer number (573438990).

Almost surely, 2^1720316967 is an apocalyptic number.

1720316967 is a deficient number, since it is larger than the sum of its proper divisors (573438993).

1720316967 is an equidigital number, since it uses as much as digits as its factorization.

1720316967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573438992.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1720316967 is about 41476.7039071332. The cubic root of 1720316967 is about 1198.2188777832.

The spelling of 1720316967 in words is "one billion, seven hundred twenty million, three hundred sixteen thousand, nine hundred sixty-seven".