920690 has 16 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 352176.

The previous prime is 920687. The next prime is 920701. The reversal of 920690 is 96029.

It is a super-2 number, since 2×920690² = 1695340152200, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772 + ... + 2231.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2⁹²⁰⁶⁹⁰ is an apocalyptic number.

920690 is a deficient number, since it is larger than the sum of its proper divisors (809038).

920690 is a wasteful number, since it uses less digits than its factorization.

920690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 920690 is about 959.5259246107. The cubic root of 920690 is about 97.2831912664.

The spelling of 920690 in words is "nine hundred twenty thousand, six hundred ninety".