2918906 has 4 divisors (see below), whose sum is σ = 4378362. Its totient is φ = 1459452.

The previous prime is 2918899. The next prime is 2918921. The reversal of 2918906 is 6098192.

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., 2907025 + 11881 = 1705^2 + 109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 729725 + ... + 729728.

2^2918906 is an apocalyptic number.

2918906 is a deficient number, since it is larger than the sum of its proper divisors (1459456).

2918906 is a wasteful number, since it uses less digits than its factorization.

2918906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459455.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2918906 is about 1708.4806115376. The cubic root of 2918906 is about 142.9135376392.

The spelling of 2918906 in words is "two million, nine hundred eighteen thousand, nine hundred six".