2667621 has 16 divisors (see below), whose sum is σ = 3908160. Its totient is φ = 1605120.

The previous prime is 2667611. The next prime is 2667631. The reversal of 2667621 is 1267662.

It is an interprime number because it is at equal distance from previous prime (2667611) and next prime (2667631).

It is not a de Polignac number, because 2667621 - 2¹⁴ = 2651237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7381 + ... + 7733.

It is an arithmetic number, because the mean of its divisors is an integer number (244260).

2^2667621 is an apocalyptic number.

It is an amenable number.

2667621 is a deficient number, since it is larger than the sum of its proper divisors (1240539).

2667621 is a wasteful number, since it uses less digits than its factorization.

2667621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its digits is 6048, while the sum is 30.

The square root of 2667621 is about 1633.2853394309. The cubic root of 2667621 is about 138.6887953415.

It can be divided in two parts, 266 and 7621, that added together give a palindrome (7887).

The spelling of 2667621 in words is "two million, six hundred sixty-seven thousand, six hundred twenty-one".