8572978 has 4 divisors (see below), whose sum is σ = 12859470. Its totient is φ = 4286488.

The previous prime is 8572961. The next prime is 8573003. The reversal of 8572978 is 8792758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6901129 + 1671849 = 2627^2 + 1293^2 .

It is a super-3 number, since 3×8572978³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2143243 + ... + 2143246.

Almost surely, 2^8572978 is an apocalyptic number.

8572978 is a deficient number, since it is larger than the sum of its proper divisors (4286492).

8572978 is a wasteful number, since it uses less digits than its factorization.

8572978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286491.

The product of its digits is 282240, while the sum is 46.

The square root of 8572978 is about 2927.9648221931. The cubic root of 8572978 is about 204.6651523453.

The spelling of 8572978 in words is "eight million, five hundred seventy-two thousand, nine hundred seventy-eight".