4006536637 has 2 divisors, whose sum is σ = 4006536638. Its totient is φ = 4006536636.

The previous prime is 4006536629. The next prime is 4006536647. The reversal of 4006536637 is 7366356004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3494464996 + 512071641 = 59114^2 + 22629^2 .

It is a cyclic number.

It is not a de Polignac number, because 4006536637 - 2³ = 4006536629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4006536637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4006536617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003268318 + 2003268319.

It is an arithmetic number, because the mean of its divisors is an integer number (2003268319).

Almost surely, 2^4006536637 is an apocalyptic number.

It is an amenable number.

4006536637 is a deficient number, since it is larger than the sum of its proper divisors (1).

4006536637 is an equidigital number, since it uses as much as digits as its factorization.

4006536637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 40.

The square root of 4006536637 is about 63297.2087615244. The cubic root of 4006536637 is about 1588.2652700865.

The spelling of 4006536637 in words is "four billion, six million, five hundred thirty-six thousand, six hundred thirty-seven".