8978546 has 4 divisors (see below), whose sum is σ = 13467822. Its totient is φ = 4489272.

The previous prime is 8978539. The next prime is 8978573. The reversal of 8978546 is 6458798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6458798 = 2 ⋅3229399.

It can be written as a sum of positive squares in only one way, i.e., 7317025 + 1661521 = 2705^2 + 1289^2 .

It is a super-3 number, since 3×8978546³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 8978546.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2244635 + ... + 2244638.

Almost surely, 2^8978546 is an apocalyptic number.

8978546 is a deficient number, since it is larger than the sum of its proper divisors (4489276).

8978546 is a wasteful number, since it uses less digits than its factorization.

8978546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489275.

The product of its digits is 483840, while the sum is 47.

The square root of 8978546 is about 2996.4221998911. The cubic root of 8978546 is about 207.8429688794.

The spelling of 8978546 in words is "eight million, nine hundred seventy-eight thousand, five hundred forty-six".