4097339621 has 2 divisors, whose sum is σ = 4097339622. Its totient is φ = 4097339620.

The previous prime is 4097339611. The next prime is 4097339647. The reversal of 4097339621 is 1269337904.

4097339621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3470388100 + 626951521 = 58910^2 + 25039^2 .

It is a cyclic number.

It is not a de Polignac number, because 4097339621 - 2²² = 4093145317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4097339611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2048669810 + 2048669811.

It is an arithmetic number, because the mean of its divisors is an integer number (2048669811).

Almost surely, 2^4097339621 is an apocalyptic number.

It is an amenable number.

4097339621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4097339621 is an equidigital number, since it uses as much as digits as its factorization.

4097339621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 4097339621 is about 64010.4649334779. The cubic root of 4097339621 is about 1600.1744108051.

The spelling of 4097339621 in words is "four billion, ninety-seven million, three hundred thirty-nine thousand, six hundred twenty-one".