1698048061 has 8 divisors (see below), whose sum is σ = 1710684248. Its totient is φ = 1685448000.

The previous prime is 1698048019. The next prime is 1698048073. The reversal of 1698048061 is 1608408961.

It can be written as a sum of positive squares in 4 ways, for example, as 90839961 + 1607208100 = 9531^2 + 40090^2 .

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

It is a 6-Lehmer number, since φ(1698048061) divides (1698048061-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 1698048061 - 2¹³ = 1698039869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1698047999 and 1698048017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698048091) 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, 89251 + ... + 106591.

It is an arithmetic number, because the mean of its divisors is an integer number (213835531).

Almost surely, 2^1698048061 is an apocalyptic number.

1698048061 is the 18429-th centered decagonal number.

It is an amenable number.

1698048061 is a deficient number, since it is larger than the sum of its proper divisors (12636187).

1698048061 is a wasteful number, since it uses less digits than its factorization.

1698048061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18063.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 1698048061 is about 41207.3787203214. The cubic root of 1698048061 is about 1193.0262314225.

The spelling of 1698048061 in words is "one billion, six hundred ninety-eight million, forty-eight thousand, sixty-one".