8920018 has 4 divisors (see below), whose sum is σ = 13380030. Its totient is φ = 4460008.

The previous prime is 8920003. The next prime is 8920027. The reversal of 8920018 is 8100298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8100298 = 2 ⋅4050149.

It can be written as a sum of positive squares in only one way, i.e., 8720209 + 199809 = 2953^2 + 447^2 .

It is a super-2 number, since 2×8920018² = 159133442240648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230003 + ... + 2230006.

Almost surely, 2^8920018 is an apocalyptic number.

8920018 is a deficient number, since it is larger than the sum of its proper divisors (4460012).

8920018 is a wasteful number, since it uses less digits than its factorization.

8920018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460011.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 8920018 is about 2986.6399180350. The cubic root of 8920018 is about 207.3903654641.

The spelling of 8920018 in words is "eight million, nine hundred twenty thousand, eighteen".