3874994869 has 2 divisors, whose sum is σ = 3874994870. Its totient is φ = 3874994868.

The previous prime is 3874994771. The next prime is 3874994887. The reversal of 3874994869 is 9684994783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3171153969 + 703840900 = 56313^2 + 26530^2 .

It is an emirp because it is prime and its reverse (9684994783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3874994869 - 2²⁵ = 3841440437 is a prime.

It is a super-2 number, since 2×3874994869² = 30031170469552654322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3874997869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1937497434 + 1937497435.

It is an arithmetic number, because the mean of its divisors is an integer number (1937497435).

Almost surely, 2^3874994869 is an apocalyptic number.

It is an amenable number.

3874994869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3874994869 is an equidigital number, since it uses as much as digits as its factorization.

3874994869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94058496, while the sum is 67.

The square root of 3874994869 is about 62249.4567767463. The cubic root of 3874994869 is about 1570.6896329298.

The spelling of 3874994869 in words is "three billion, eight hundred seventy-four million, nine hundred ninety-four thousand, eight hundred sixty-nine".