906345 has 24 divisors (see below), whose sum is σ = 1714752. Its totient is φ = 439200.

The previous prime is 906343. The next prime is 906349. The reversal of 906345 is 543609.

It is a happy number.

It is not a de Polignac number, because 906345 - 2¹ = 906343 is a prime.

It is a super-2 number, since 2×906345² = 1642922518050, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (906343) 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 23 ways as a sum of consecutive naturals, for example, 421 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (71448).

2⁹⁰⁶³⁴⁵ is an apocalyptic number.

It is an amenable number.

906345 is a deficient number, since it is larger than the sum of its proper divisors (808407).

906345 is a wasteful number, since it uses less digits than its factorization.

906345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 906345 is about 952.0215333699. The cubic root of 906345 is about 96.7752973530.

The spelling of 906345 in words is "nine hundred six thousand, three hundred forty-five".