2207668 has 6 divisors (see below), whose sum is σ = 3863426. Its totient is φ = 1103832.

The previous prime is 2207633. The next prime is 2207677. The reversal of 2207668 is 8667022.

It is a happy number.

2207668 is nontrivially palindromic in base 9 and base 11.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 242064 = 1402^2 + 492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275955 + ... + 275962.

2^2207668 is an apocalyptic number.

It is an amenable number.

2207668 is a deficient number, since it is larger than the sum of its proper divisors (1655758).

2207668 is a wasteful number, since it uses less digits than its factorization.

2207668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551921 (or 551919 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2207668 is about 1485.8223312361. The cubic root of 2207668 is about 130.2100745467.

The spelling of 2207668 in words is "two million, two hundred seven thousand, six hundred sixty-eight".