8978955 has 16 divisors (see below), whose sum is σ = 14424864. Its totient is φ = 4769280.

The previous prime is 8978953. The next prime is 8978969. The reversal of 8978955 is 5598798.

It is not a de Polignac number, because 8978955 - 2¹ = 8978953 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8978898 and 8978907.

It is not an unprimeable number, because it can be changed into a prime (8978953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3075 + ... + 5235.

It is an arithmetic number, because the mean of its divisors is an integer number (901554).

Almost surely, 2^8978955 is an apocalyptic number.

8978955 is a deficient number, since it is larger than the sum of its proper divisors (5445909).

8978955 is a wasteful number, since it uses less digits than its factorization.

8978955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446.

The product of its digits is 907200, while the sum is 51.

The square root of 8978955 is about 2996.4904471732. The cubic root of 8978955 is about 207.8461247907.

The spelling of 8978955 in words is "eight million, nine hundred seventy-eight thousand, nine hundred fifty-five".