1699420075 has 6 divisors (see below), whose sum is σ = 2107280924. Its totient is φ = 1359536040.

The previous prime is 1699420069. The next prime is 1699420091. The reversal of 1699420075 is 5700249961.

It is a happy number.

It is not a de Polignac number, because 1699420075 - 2⁹ = 1699419563 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 33988377 + ... + 33988426.

Almost surely, 2^1699420075 is an apocalyptic number.

1699420075 is a deficient number, since it is larger than the sum of its proper divisors (407860849).

1699420075 is an equidigital number, since it uses as much as digits as its factorization.

1699420075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67976813 (or 67976808 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1699420075 is about 41224.0230326930. The cubic root of 1699420075 is about 1193.3474645827.

The spelling of 1699420075 in words is "one billion, six hundred ninety-nine million, four hundred twenty thousand, seventy-five".