814906945 has 8 divisors (see below), whose sum is σ = 980708544. Its totient is φ = 650045424.

The previous prime is 814906943. The next prime is 814906949. The reversal of 814906945 is 549609418.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 814906945 - 2¹ = 814906943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 814906895 and 814906904.

It is not an unprimeable number, because it can be changed into a prime (814906943) 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 7 ways as a sum of consecutive naturals, for example, 233109 + ... + 236578.

It is an arithmetic number, because the mean of its divisors is an integer number (122588568).

Almost surely, 2^814906945 is an apocalyptic number.

It is an amenable number.

814906945 is a deficient number, since it is larger than the sum of its proper divisors (165801599).

814906945 is a wasteful number, since it uses less digits than its factorization.

814906945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470039.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 814906945 is about 28546.5750134758. The cubic root of 814906945 is about 934.0483114921.

The spelling of 814906945 in words is "eight hundred fourteen million, nine hundred six thousand, nine hundred forty-five".