690332533 has 4 divisors (see below), whose sum is σ = 753090048. Its totient is φ = 627575020.

The previous prime is 690332527. The next prime is 690332543. The reversal of 690332533 is 335233096.

690332533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 690332533 - 2¹⁷ = 690201461 is a prime.

It is a super-2 number, since 2×690332533² = 953118012236392178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690332543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31378741 + ... + 31378762.

It is an arithmetic number, because the mean of its divisors is an integer number (188272512).

Almost surely, 2^690332533 is an apocalyptic number.

It is an amenable number.

690332533 is a deficient number, since it is larger than the sum of its proper divisors (62757515).

690332533 is a wasteful number, since it uses less digits than its factorization.

690332533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62757514.

The product of its (nonzero) digits is 43740, while the sum is 34.

The square root of 690332533 is about 26274.1799681741. The cubic root of 690332533 is about 883.7975233772.

The spelling of 690332533 in words is "six hundred ninety million, three hundred thirty-two thousand, five hundred thirty-three".