690652563 has 8 divisors (see below), whose sum is σ = 923191248. Its totient is φ = 459274464.

The previous prime is 690652561. The next prime is 690652583. The reversal of 690652563 is 365256096.

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

It is not a de Polignac number, because 690652563 - 2¹ = 690652561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690652561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288756 + ... + 291137.

It is an arithmetic number, because the mean of its divisors is an integer number (115398906).

Almost surely, 2^690652563 is an apocalyptic number.

690652563 is a deficient number, since it is larger than the sum of its proper divisors (232538685).

690652563 is a wasteful number, since it uses less digits than its factorization.

690652563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580293.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 690652563 is about 26280.2694620889. The cubic root of 690652563 is about 883.9340749722.

The spelling of 690652563 in words is "six hundred ninety million, six hundred fifty-two thousand, five hundred sixty-three".