690913003 has 4 divisors (see below), whose sum is σ = 753723288. Its totient is φ = 628102720.

The previous prime is 690912991. The next prime is 690913007. The reversal of 690913003 is 300319096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690913003 - 2⁹ = 690912491 is a prime.

It is a super-3 number, since 3×690913003³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690913007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31405126 + ... + 31405147.

It is an arithmetic number, because the mean of its divisors is an integer number (188430822).

Almost surely, 2^690913003 is an apocalyptic number.

690913003 is a deficient number, since it is larger than the sum of its proper divisors (62810285).

690913003 is a wasteful number, since it uses less digits than its factorization.

690913003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62810284.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 690913003 is about 26285.2240431768. The cubic root of 690913003 is about 884.0451693544.

The spelling of 690913003 in words is "six hundred ninety million, nine hundred thirteen thousand, three".