1690875743 has 8 divisors (see below), whose sum is σ = 1790711712. Its totient is φ = 1591081216.

The previous prime is 1690875733. The next prime is 1690875761. The reversal of 1690875743 is 3475780961.

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 1690875743 - 2⁶ = 1690875679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1690875691 and 1690875700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690875733) 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, 122246 + ... + 135372.

It is an arithmetic number, because the mean of its divisors is an integer number (223838964).

Almost surely, 2^1690875743 is an apocalyptic number.

1690875743 is a deficient number, since it is larger than the sum of its proper divisors (99835969).

1690875743 is a wasteful number, since it uses less digits than its factorization.

1690875743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20721.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 1690875743 is about 41120.2595200954. The cubic root of 1690875743 is about 1191.3441354547.

The spelling of 1690875743 in words is "one billion, six hundred ninety million, eight hundred seventy-five thousand, seven hundred forty-three".