1721496367 has 2 divisors, whose sum is σ = 1721496368. Its totient is φ = 1721496366.

The previous prime is 1721496319. The next prime is 1721496391. The reversal of 1721496367 is 7636941271.

It is a strong prime.

It is an emirp because it is prime and its reverse (7636941271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1721496367 - 2⁷ = 1721496239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1721496167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860748183 + 860748184.

It is an arithmetic number, because the mean of its divisors is an integer number (860748184).

Almost surely, 2^1721496367 is an apocalyptic number.

1721496367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1721496367 is an equidigital number, since it uses as much as digits as its factorization.

1721496367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 1721496367 is about 41490.9190908083. The cubic root of 1721496367 is about 1198.4926367376.

The spelling of 1721496367 in words is "one billion, seven hundred twenty-one million, four hundred ninety-six thousand, three hundred sixty-seven".