2797621623 has 6 divisors (see below), whose sum is σ = 4041009024. Its totient is φ = 1865081076.

The previous prime is 2797621621. The next prime is 2797621681. The reversal of 2797621623 is 3261267972.

It is not a de Polignac number, because 2797621623 - 2¹ = 2797621621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797621621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155423415 + ... + 155423432.

It is an arithmetic number, because the mean of its divisors is an integer number (673501504).

Almost surely, 2^2797621623 is an apocalyptic number.

2797621623 is a deficient number, since it is larger than the sum of its proper divisors (1243387401).

2797621623 is a wasteful number, since it uses less digits than its factorization.

2797621623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310846853 (or 310846850 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 2797621623 is about 52892.5478966555. The cubic root of 2797621623 is about 1409.0605587652.

The spelling of 2797621623 in words is "two billion, seven hundred ninety-seven million, six hundred twenty-one thousand, six hundred twenty-three".