2663938 has 4 divisors (see below), whose sum is σ = 3995910. Its totient is φ = 1331968.

The previous prime is 2663897. The next prime is 2663953. The reversal of 2663938 is 8393662.

It is a happy number.

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., 2169729 + 494209 = 1473^2 + 703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2663897 and 2663906.

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, 665983 + ... + 665986.

2^2663938 is an apocalyptic number.

2663938 is a deficient number, since it is larger than the sum of its proper divisors (1331972).

2663938 is a wasteful number, since it uses less digits than its factorization.

2663938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331971.

The product of its digits is 46656, while the sum is 37.

The square root of 2663938 is about 1632.1574678933. The cubic root of 2663938 is about 138.6249399332.

The spelling of 2663938 in words is "two million, six hundred sixty-three thousand, nine hundred thirty-eight".