906690 has 16 divisors (see below), whose sum is σ = 2176128. Its totient is φ = 241776.

The previous prime is 906679. The next prime is 906691. The reversal of 906690 is 96609.

It is a super-2 number, since 2×906690² = 1644173512200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 30223 = 906690 / (9 + 0 + 6 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (906691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15082 + ... + 15141.

It is an arithmetic number, because the mean of its divisors is an integer number (136008).

2⁹⁰⁶⁶⁹⁰ is an apocalyptic number.

906690 is an abundant number, since it is smaller than the sum of its proper divisors (1269438).

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

906690 is a wasteful number, since it uses less digits than its factorization.

906690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30233.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 906690 is about 952.2027095110. The cubic root of 906690 is about 96.7875749596.

It can be divided in two parts, 906 and 690, that added together give a triangular number (1596 = T₅₆).

The spelling of 906690 in words is "nine hundred six thousand, six hundred ninety".