906434321 has 4 divisors (see below), whose sum is σ = 976160052. Its totient is φ = 836708592.

The previous prime is 906434303. The next prime is 906434323. The reversal of 906434321 is 123434609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46771921 + 859662400 = 6839^2 + 29320^2 .

It is a cyclic number.

It is not a de Polignac number, because 906434321 - 2¹⁴ = 906417937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906434323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34862846 + ... + 34862871.

It is an arithmetic number, because the mean of its divisors is an integer number (244040013).

Almost surely, 2^906434321 is an apocalyptic number.

It is an amenable number.

906434321 is a deficient number, since it is larger than the sum of its proper divisors (69725731).

906434321 is a wasteful number, since it uses less digits than its factorization.

906434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69725730.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 906434321 is about 30107.0476965112. The cubic root of 906434321 is about 967.7847634201.

The spelling of 906434321 in words is "nine hundred six million, four hundred thirty-four thousand, three hundred twenty-one".