8357978 has 12 divisors (see below), whose sum is σ = 12731370. Its totient is φ = 4115160.

The previous prime is 8357977. The next prime is 8357983. The reversal of 8357978 is 8797538.

It can be written as a sum of positive squares in only one way, i.e., 6901129 + 1456849 = 2627^2 + 1207^2 .

It is not an unprimeable number, because it can be changed into a prime (8357971) 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 5 ways as a sum of consecutive naturals, for example, 9668 + ... + 10496.

Almost surely, 2^8357978 is an apocalyptic number.

8357978 is a deficient number, since it is larger than the sum of its proper divisors (4373392).

8357978 is an equidigital number, since it uses as much as digits as its factorization.

8357978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 902 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 8357978 is about 2891.0167761533. The cubic root of 8357978 is about 202.9397282787.

The spelling of 8357978 in words is "eight million, three hundred fifty-seven thousand, nine hundred seventy-eight".