2797045621 has 16 divisors (see below), whose sum is σ = 2949289200. Its totient is φ = 2649024000.

The previous prime is 2797045609. The next prime is 2797045633. The reversal of 2797045621 is 1265407972.

It is an interprime number because it is at equal distance from previous prime (2797045609) and next prime (2797045633).

It can be written as a sum of positive squares in 8 ways, for example, as 69072721 + 2727972900 = 8311^2 + 52230^2 .

It is a cyclic number.

It is not a de Polignac number, because 2797045621 - 2⁹ = 2797045109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797040621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314881 + ... + 323641.

It is an arithmetic number, because the mean of its divisors is an integer number (184330575).

Almost surely, 2^2797045621 is an apocalyptic number.

It is an amenable number.

2797045621 is a deficient number, since it is larger than the sum of its proper divisors (152243579).

2797045621 is a wasteful number, since it uses less digits than its factorization.

2797045621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9000.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 2797045621 is about 52887.1025960016. The cubic root of 2797045621 is about 1408.9638483546.

The spelling of 2797045621 in words is "two billion, seven hundred ninety-seven million, forty-five thousand, six hundred twenty-one".