2630387 has 4 divisors (see below), whose sum is σ = 2721120. Its totient is φ = 2539656.

The previous prime is 2630377. The next prime is 2630389. The reversal of 2630387 is 7830362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2630387 - 2⁴ = 2630371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 90703 = 2630387 / (2 + 6 + 3 + 0 + 3 + 8 + 7).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 3³ + 0 + 3¹² + 8⁷ + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2630389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45323 + ... + 45380.

It is an arithmetic number, because the mean of its divisors is an integer number (680280).

2^2630387 is an apocalyptic number.

2630387 is a deficient number, since it is larger than the sum of its proper divisors (90733).

2630387 is an equidigital number, since it uses as much as digits as its factorization.

2630387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90732.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 2630387 is about 1621.8467868452. The cubic root of 2630387 is about 138.0405083069.

The spelling of 2630387 in words is "two million, six hundred thirty thousand, three hundred eighty-seven".