978145822 has 8 divisors (see below), whose sum is σ = 1478419272. Its totient is φ = 485339400.

The previous prime is 978145799. The next prime is 978145829. The reversal of 978145822 is 228541879.

978145822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978145829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866429 + ... + 1866952.

It is an arithmetic number, because the mean of its divisors is an integer number (184802409).

Almost surely, 2^978145822 is an apocalyptic number.

978145822 is a deficient number, since it is larger than the sum of its proper divisors (500273450).

978145822 is a wasteful number, since it uses less digits than its factorization.

978145822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733514.

The product of its digits is 322560, while the sum is 46.

The square root of 978145822 is about 31275.3228920182. The cubic root of 978145822 is about 992.6615529265.

The spelling of 978145822 in words is "nine hundred seventy-eight million, one hundred forty-five thousand, eight hundred twenty-two".