690471023 has 16 divisors (see below), whose sum is σ = 775975200. Its totient is φ = 608860800.

The previous prime is 690470993. The next prime is 690471043. The reversal of 690471023 is 320174096.

690471023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 690471023 - 2¹² = 690466927 is a prime.

It is a super-3 number, since 3×690471023³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690471043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139613 + ... + 144473.

It is an arithmetic number, because the mean of its divisors is an integer number (48498450).

Almost surely, 2^690471023 is an apocalyptic number.

690471023 is a deficient number, since it is larger than the sum of its proper divisors (85504177).

690471023 is a wasteful number, since it uses less digits than its factorization.

690471023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 690471023 is about 26276.8153131235. The cubic root of 690471023 is about 883.8566199861.

The spelling of 690471023 in words is "six hundred ninety million, four hundred seventy-one thousand, twenty-three".