3988737157 has 2 divisors, whose sum is σ = 3988737158. Its totient is φ = 3988737156.

The previous prime is 3988737101. The next prime is 3988737253. The reversal of 3988737157 is 7517378893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2728913121 + 1259824036 = 52239^2 + 35494^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988737157 - 2¹⁵ = 3988704389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3988737457) 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 as a sum of consecutive naturals, namely, 1994368578 + 1994368579.

It is an arithmetic number, because the mean of its divisors is an integer number (1994368579).

Almost surely, 2^3988737157 is an apocalyptic number.

It is an amenable number.

3988737157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988737157 is an equidigital number, since it uses as much as digits as its factorization.

3988737157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 58.

The square root of 3988737157 is about 63156.4498448100. The cubic root of 3988737157 is about 1585.9097640105.

The spelling of 3988737157 in words is "three billion, nine hundred eighty-eight million, seven hundred thirty-seven thousand, one hundred fifty-seven".