978435227 has 8 divisors (see below), whose sum is σ = 1219867392. Its totient is φ = 762417000.

The previous prime is 978435223. The next prime is 978435233. The reversal of 978435227 is 722534879.

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 978435227 - 2² = 978435223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978435223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6353399 + ... + 6353552.

It is an arithmetic number, because the mean of its divisors is an integer number (152483424).

Almost surely, 2^978435227 is an apocalyptic number.

978435227 is a deficient number, since it is larger than the sum of its proper divisors (241432165).

978435227 is a wasteful number, since it uses less digits than its factorization.

978435227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12706969.

The product of its digits is 846720, while the sum is 47.

The square root of 978435227 is about 31279.9492806494. The cubic root of 978435227 is about 992.7594432009.

The spelling of 978435227 in words is "nine hundred seventy-eight million, four hundred thirty-five thousand, two hundred twenty-seven".