1722670105 has 16 divisors (see below), whose sum is σ = 2230263504. Its totient is φ = 1269815040.

The previous prime is 1722670099. The next prime is 1722670111. The reversal of 1722670105 is 5010762271.

It is an interprime number because it is at equal distance from previous prime (1722670099) and next prime (1722670111).

It can be written as a sum of positive squares in 8 ways, for example, as 248724441 + 1473945664 = 15771^2 + 38392^2 .

It is not a de Polignac number, because 1722670105 - 2⁹ = 1722669593 is a prime.

It is a super-2 number, since 2×1722670105² = 5935184581321422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12415 + ... + 59995.

It is an arithmetic number, because the mean of its divisors is an integer number (139391469).

Almost surely, 2^1722670105 is an apocalyptic number.

It is an amenable number.

1722670105 is a deficient number, since it is larger than the sum of its proper divisors (507593399).

1722670105 is a wasteful number, since it uses less digits than its factorization.

1722670105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48156.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1722670105 is about 41505.0611974010. The cubic root of 1722670105 is about 1198.7649573367.

The spelling of 1722670105 in words is "one billion, seven hundred twenty-two million, six hundred seventy thousand, one hundred five".