690328833 has 8 divisors (see below), whose sum is σ = 922428288. Its totient is φ = 459224304.

The previous prime is 690328829. The next prime is 690328853. The reversal of 690328833 is 338823096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690328833 - 2² = 690328829 is a prime.

It is a super-2 number, since 2×690328833² = 953107795342283778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (690328813) 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 7 ways as a sum of consecutive naturals, for example, 247110 + ... + 249887.

It is an arithmetic number, because the mean of its divisors is an integer number (115303536).

Almost surely, 2^690328833 is an apocalyptic number.

It is an amenable number.

690328833 is a deficient number, since it is larger than the sum of its proper divisors (232099455).

690328833 is a wasteful number, since it uses less digits than its factorization.

690328833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497463.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 690328833 is about 26274.1095567481. The cubic root of 690328833 is about 883.7959444007.

The spelling of 690328833 in words is "six hundred ninety million, three hundred twenty-eight thousand, eight hundred thirty-three".