690075769 has 8 divisors (see below), whose sum is σ = 696009600. Its totient is φ = 684159600.

The previous prime is 690075703. The next prime is 690075773. The reversal of 690075769 is 967570096.

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 690075769 - 2¹¹ = 690073721 is a prime.

It is a super-2 number, since 2×690075769² = 952409133921882722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (600075769) 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, 81024 + ... + 89134.

It is an arithmetic number, because the mean of its divisors is an integer number (87001200).

Almost surely, 2^690075769 is an apocalyptic number.

It is an amenable number.

690075769 is a deficient number, since it is larger than the sum of its proper divisors (5933831).

690075769 is a wasteful number, since it uses less digits than its factorization.

690075769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 690075769 is about 26269.2932718031. The cubic root of 690075769 is about 883.6879358394.

The spelling of 690075769 in words is "six hundred ninety million, seventy-five thousand, seven hundred sixty-nine".