3137987893 has 2 divisors, whose sum is σ = 3137987894. Its totient is φ = 3137987892.

The previous prime is 3137987873. The next prime is 3137987903. The reversal of 3137987893 is 3987897313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2668962244 + 469025649 = 51662^2 + 21657^2 .

It is a cyclic number.

It is not a de Polignac number, because 3137987893 - 2¹³ = 3137979701 is a prime.

It is a super-2 number, since 2×3137987893² = 19693936033229158898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3137987843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568993946 + 1568993947.

It is an arithmetic number, because the mean of its divisors is an integer number (1568993947).

Almost surely, 2^3137987893 is an apocalyptic number.

It is an amenable number.

3137987893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3137987893 is an equidigital number, since it uses as much as digits as its factorization.

3137987893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 58.

The square root of 3137987893 is about 56017.7462327788. The cubic root of 3137987893 is about 1464.0315004930.

The spelling of 3137987893 in words is "three billion, one hundred thirty-seven million, nine hundred eighty-seven thousand, eight hundred ninety-three".