690069575 has 24 divisors (see below), whose sum is σ = 961584288. Its totient is φ = 487428480.

The previous prime is 690069571. The next prime is 690069581. The reversal of 690069575 is 575960096.

It is not a de Polignac number, because 690069575 - 2² = 690069571 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 (690069571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38684 + ... + 53633.

It is an arithmetic number, because the mean of its divisors is an integer number (40066012).

Almost surely, 2^690069575 is an apocalyptic number.

690069575 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

690069575 is a deficient number, since it is larger than the sum of its proper divisors (271514713).

690069575 is a wasteful number, since it uses less digits than its factorization.

690069575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92363 (or 92358 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 47.

The square root of 690069575 is about 26269.1753772363. The cubic root of 690069575 is about 883.6852918884.

The spelling of 690069575 in words is "six hundred ninety million, sixty-nine thousand, five hundred seventy-five".