8920906 has 4 divisors (see below), whose sum is σ = 13381362. Its totient is φ = 4460452.

The previous prime is 8920889. The next prime is 8920913. The reversal of 8920906 is 6090298.

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., 6974881 + 1946025 = 2641^2 + 1395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230225 + ... + 2230228.

Almost surely, 2^8920906 is an apocalyptic number.

8920906 is a deficient number, since it is larger than the sum of its proper divisors (4460456).

8920906 is a wasteful number, since it uses less digits than its factorization.

8920906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460455.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 8920906 is about 2986.7885763810. The cubic root of 8920906 is about 207.3972472339.

The spelling of 8920906 in words is "eight million, nine hundred twenty thousand, nine hundred six".