1720739467 has 2 divisors, whose sum is σ = 1720739468. Its totient is φ = 1720739466.

The previous prime is 1720739453. The next prime is 1720739477. The reversal of 1720739467 is 7649370271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1720739467 - 2¹⁵ = 1720706699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1720739417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860369733 + 860369734.

It is an arithmetic number, because the mean of its divisors is an integer number (860369734).

Almost surely, 2^1720739467 is an apocalyptic number.

1720739467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1720739467 is an equidigital number, since it uses as much as digits as its factorization.

1720739467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 1720739467 is about 41481.7968149886. The cubic root of 1720739467 is about 1198.3169616533.

The spelling of 1720739467 in words is "one billion, seven hundred twenty million, seven hundred thirty-nine thousand, four hundred sixty-seven".