1720608241 has 8 divisors (see below), whose sum is σ = 1883710368. Its totient is φ = 1558620000.

The previous prime is 1720608223. The next prime is 1720608247. The reversal of 1720608241 is 1428060271.

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

It is a cyclic number.

It is not a de Polignac number, because 1720608241 - 2²¹ = 1718511089 is a prime.

It is a super-2 number, since 2×1720608241² = 5920985437994228162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1720608247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275235 + ... + 281416.

It is an arithmetic number, because the mean of its divisors is an integer number (235463796).

Almost surely, 2^1720608241 is an apocalyptic number.

1720608241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1720608241 is a deficient number, since it is larger than the sum of its proper divisors (163102127).

1720608241 is a wasteful number, since it uses less digits than its factorization.

1720608241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556943.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1720608241 is about 41480.2150548909. The cubic root of 1720608241 is about 1198.2864991027.

It can be divided in two parts, 1720 and 608241, that added together give a square (609961 = 781²).

The spelling of 1720608241 in words is "one billion, seven hundred twenty million, six hundred eight thousand, two hundred forty-one".