2638973 has 2 divisors, whose sum is σ = 2638974. Its totient is φ = 2638972.

The previous prime is 2638949. The next prime is 2639041. The reversal of 2638973 is 3798362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2365444 + 273529 = 1538^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638973 - 2⁸ = 2638717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319486 + 1319487.

It is an arithmetic number, because the mean of its divisors is an integer number (1319487).

2^2638973 is an apocalyptic number.

It is an amenable number.

2638973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638973 is an equidigital number, since it uses as much as digits as its factorization.

2638973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 2638973 is about 1624.4916127823. The cubic root of 2638973 is about 138.1905405468.

It can be divided in two parts, 26389 and 73, that added together give a palindrome (26462).

The spelling of 2638973 in words is "two million, six hundred thirty-eight thousand, nine hundred seventy-three".