4070695621 has 2 divisors, whose sum is σ = 4070695622. Its totient is φ = 4070695620.

The previous prime is 4070695613. The next prime is 4070695627. The reversal of 4070695621 is 1265960704.

4070695621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3562418596 + 508277025 = 59686^2 + 22545^2 .

It is a cyclic number.

It is not a de Polignac number, because 4070695621 - 2³ = 4070695613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4070695627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035347810 + 2035347811.

It is an arithmetic number, because the mean of its divisors is an integer number (2035347811).

Almost surely, 2^4070695621 is an apocalyptic number.

It is an amenable number.

4070695621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4070695621 is an equidigital number, since it uses as much as digits as its factorization.

4070695621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 4070695621 is about 63802.0032679226. The cubic root of 4070695621 is about 1596.6983506153.

The spelling of 4070695621 in words is "four billion, seventy million, six hundred ninety-five thousand, six hundred twenty-one".