1720054959 has 8 divisors (see below), whose sum is σ = 2621036160. Its totient is φ = 982888536.

The previous prime is 1720054949. The next prime is 1720054961. The reversal of 1720054959 is 9594500271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1720054959 - 2⁴ = 1720054943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1720054959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720054939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40953669 + ... + 40953710.

It is an arithmetic number, because the mean of its divisors is an integer number (327629520).

Almost surely, 2^1720054959 is an apocalyptic number.

1720054959 is a deficient number, since it is larger than the sum of its proper divisors (900981201).

1720054959 is an equidigital number, since it uses as much as digits as its factorization.

1720054959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81907389.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1720054959 is about 41473.5452909442. The cubic root of 1720054959 is about 1198.1580442514.

The spelling of 1720054959 in words is "one billion, seven hundred twenty million, fifty-four thousand, nine hundred fifty-nine".