1720370053 has 8 divisors (see below), whose sum is σ = 1731014208. Its totient is φ = 1709757504.

The previous prime is 1720370033. The next prime is 1720370083. The reversal of 1720370053 is 3500730271.

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 1720370053 - 2¹³ = 1720361861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720370033) 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, 106326 + ... + 121432.

It is an arithmetic number, because the mean of its divisors is an integer number (216376776).

Almost surely, 2^1720370053 is an apocalyptic number.

It is an amenable number.

1720370053 is a deficient number, since it is larger than the sum of its proper divisors (10644155).

1720370053 is a wasteful number, since it uses less digits than its factorization.

1720370053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15803.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 1720370053 is about 41477.3438517946. The cubic root of 1720370053 is about 1198.2312026424.

The spelling of 1720370053 in words is "one billion, seven hundred twenty million, three hundred seventy thousand, fifty-three".