564690 has 32 divisors (see below), whose sum is σ = 1549440. Its totient is φ = 129024.

The previous prime is 564679. The next prime is 564701. The reversal of 564690 is 96465.

564690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (564679) and next prime (564701).

It is a super-2 number, since 2×564690² = 637749592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

564690 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, 1135 + ... + 1554.

It is an arithmetic number, because the mean of its divisors is an integer number (48420).

2⁵⁶⁴⁶⁹⁰ is an apocalyptic number.

564690 is an abundant number, since it is smaller than the sum of its proper divisors (984750).

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

564690 is a wasteful number, since it uses less digits than its factorization.

564690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 564690 is about 751.4585816930. The cubic root of 564690 is about 82.6551716876.

The spelling of 564690 in words is "five hundred sixty-four thousand, six hundred ninety".