3887689501 has 2 divisors, whose sum is σ = 3887689502. Its totient is φ = 3887689500.

The previous prime is 3887689457. The next prime is 3887689601. The reversal of 3887689501 is 1059867883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3043728900 + 843960601 = 55170^2 + 29051^2 .

It is an emirp because it is prime and its reverse (1059867883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3887689501 - 2¹⁷ = 3887558429 is a prime.

It is a super-2 number, since 2×3887689501² = 30228259312371258002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3887689601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1943844750 + 1943844751.

It is an arithmetic number, because the mean of its divisors is an integer number (1943844751).

Almost surely, 2^3887689501 is an apocalyptic number.

It is an amenable number.

3887689501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3887689501 is an equidigital number, since it uses as much as digits as its factorization.

3887689501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 3887689501 is about 62351.3392077508. The cubic root of 3887689501 is about 1572.4029764819.

The spelling of 3887689501 in words is "three billion, eight hundred eighty-seven million, six hundred eighty-nine thousand, five hundred one".