690552 has 64 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 218592.

The previous prime is 690541. The next prime is 690553. The reversal of 690552 is 255096.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690552.

It is not an unprimeable number, because it can be changed into a prime (690553) by changing a digit.

690552 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4899 + ... + 5037.

It is an arithmetic number, because the mean of its divisors is an integer number (31500).

2⁶⁹⁰⁵⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008000).

690552 is an abundant number, since it is smaller than the sum of its proper divisors (1325448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690552 is a wasteful number, since it uses less digits than its factorization.

690552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 690552 is about 830.9945848199. The cubic root of 690552 is about 88.3891170922.

The spelling of 690552 in words is "six hundred ninety thousand, five hundred fifty-two".