690536 has 64 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 250560.

The previous prime is 690533. The next prime is 690541. The reversal of 690536 is 635096.

It is a junction number, because it is equal to n+sod(n) for n = 690499 and 690508.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690536.

It is not an unprimeable number, because it can be changed into a prime (690533) 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, 11675 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (27000).

2⁶⁹⁰⁵³⁶ 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 690536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864000).

690536 is an abundant number, since it is smaller than the sum of its proper divisors (1037464).

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

690536 is a wasteful number, since it uses less digits than its factorization.

690536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 690536 is about 830.9849577459. The cubic root of 690536 is about 88.3884344321.

The spelling of 690536 in words is "six hundred ninety thousand, five hundred thirty-six".