690828095 has 8 divisors (see below), whose sum is σ = 831455664. Its totient is φ = 551021184.

The previous prime is 690828077. The next prime is 690828097. The reversal of 690828095 is 590828096.

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 690828095 - 2²⁴ = 674050879 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 (690828097) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 203309 + ... + 206678.

It is an arithmetic number, because the mean of its divisors is an integer number (103931958).

Almost surely, 2^690828095 is an apocalyptic number.

690828095 is a deficient number, since it is larger than the sum of its proper divisors (140627569).

690828095 is a wasteful number, since it uses less digits than its factorization.

690828095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410329.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 690828095 is about 26283.6088656029. The cubic root of 690828095 is about 884.0089537084.

Subtracting from 690828095 its reverse (590828096), we obtain a palindrome (99999999).

It can be divided in two parts, 69082 and 8095, that added together give a palindrome (77177).

The spelling of 690828095 in words is "six hundred ninety million, eight hundred twenty-eight thousand, ninety-five".