1722713401 has 4 divisors (see below), whose sum is σ = 1724495872. Its totient is φ = 1720930932.

The previous prime is 1722713381. The next prime is 1722713407. The reversal of 1722713401 is 1043172271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1043172271 = 1567 ⋅665713.

It is a cyclic number.

It is not a de Polignac number, because 1722713401 - 2⁹ = 1722712889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1722713401.

It is not an unprimeable number, because it can be changed into a prime (1722713407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889785 + ... + 891718.

It is an arithmetic number, because the mean of its divisors is an integer number (431123968).

Almost surely, 2^1722713401 is an apocalyptic number.

It is an amenable number.

1722713401 is a deficient number, since it is larger than the sum of its proper divisors (1782471).

1722713401 is an equidigital number, since it uses as much as digits as its factorization.

1722713401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782470.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1722713401 is about 41505.5827690685. The cubic root of 1722713401 is about 1198.7750001365.

Adding to 1722713401 its reverse (1043172271), we get a palindrome (2765885672).

It can be divided in two parts, 17227 and 13401, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 1722713401 in words is "one billion, seven hundred twenty-two million, seven hundred thirteen thousand, four hundred one".