8978667 has 8 divisors (see below), whose sum is σ = 12001680. Its totient is φ = 5970720.

The previous prime is 8978663. The next prime is 8978687. The reversal of 8978667 is 7668798.

It is a happy number.

8978667 is digitally balanced in base 3, 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 not a de Polignac number, because 8978667 - 2² = 8978663 is a prime.

It is a super-2 number, since 2×8978667² = 161232922193778, which contains 22 as substring.

8978667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8978663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292 + ... + 4817.

It is an arithmetic number, because the mean of its divisors is an integer number (1500210).

Almost surely, 2^8978667 is an apocalyptic number.

8978667 is a deficient number, since it is larger than the sum of its proper divisors (3023013).

8978667 is a wasteful number, since it uses less digits than its factorization.

8978667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533.

The product of its digits is 1016064, while the sum is 51.

The square root of 8978667 is about 2996.4423905692. The cubic root of 8978667 is about 207.8439025453.

The spelling of 8978667 in words is "eight million, nine hundred seventy-eight thousand, six hundred sixty-seven".