1698075053 has 4 divisors (see below), whose sum is σ = 1698591840. Its totient is φ = 1697558268.

The previous prime is 1698075007. The next prime is 1698075091. The reversal of 1698075053 is 3505708961.

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: 3505708961 = 293 ⋅11964877.

It is a cyclic number.

It is not a de Polignac number, because 1698075053 - 2¹⁴ = 1698058669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1698074995 and 1698075013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698075553) 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, 253433 + ... + 260046.

It is an arithmetic number, because the mean of its divisors is an integer number (424647960).

Almost surely, 2^1698075053 is an apocalyptic number.

It is an amenable number.

1698075053 is a deficient number, since it is larger than the sum of its proper divisors (516787).

1698075053 is an equidigital number, since it uses as much as digits as its factorization.

1698075053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516786.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 1698075053 is about 41207.7062331792. The cubic root of 1698075053 is about 1193.0325527970.

The spelling of 1698075053 in words is "one billion, six hundred ninety-eight million, seventy-five thousand, fifty-three".