2722387 has 2 divisors, whose sum is σ = 2722388. Its totient is φ = 2722386.

The previous prime is 2722367. The next prime is 2722399. The reversal of 2722387 is 7832272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2722387 - 2¹⁵ = 2689619 is a prime.

It is a super-2 number, since 2×2722387² = 14822781955538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2722337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361193 + 1361194.

It is an arithmetic number, because the mean of its divisors is an integer number (1361194).

2^2722387 is an apocalyptic number.

2722387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722387 is an equidigital number, since it uses as much as digits as its factorization.

2722387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 31.

The square root of 2722387 is about 1649.9657572204. The cubic root of 2722387 is about 139.6314626830.

The spelling of 2722387 in words is "two million, seven hundred twenty-two thousand, three hundred eighty-seven".