1699753989 has 16 divisors (see below), whose sum is σ = 2351601728. Its totient is φ = 1091169792.

The previous prime is 1699753907. The next prime is 1699754033. The reversal of 1699753989 is 9893579961.

It is not a de Polignac number, because 1699753989 - 2⁸ = 1699753733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1699753189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68167 + ... + 89700.

It is an arithmetic number, because the mean of its divisors is an integer number (146975108).

Almost surely, 2^1699753989 is an apocalyptic number.

It is an amenable number.

1699753989 is a deficient number, since it is larger than the sum of its proper divisors (651847739).

1699753989 is a wasteful number, since it uses less digits than its factorization.

1699753989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158004.

The product of its digits is 33067440, while the sum is 66.

The square root of 1699753989 is about 41228.0728266554. The cubic root of 1699753989 is about 1193.4256185631.

The spelling of 1699753989 in words is "one billion, six hundred ninety-nine million, seven hundred fifty-three thousand, nine hundred eighty-nine".