3858698861 has 2 divisors, whose sum is σ = 3858698862. Its totient is φ = 3858698860.

The previous prime is 3858698843. The next prime is 3858698881. The reversal of 3858698861 is 1688968583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2459564836 + 1399134025 = 49594^2 + 37405^2 .

It is an emirp because it is prime and its reverse (1688968583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3858698861 - 2²² = 3854504557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3858698794 and 3858698803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3858698821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929349430 + 1929349431.

It is an arithmetic number, because the mean of its divisors is an integer number (1929349431).

Almost surely, 2^3858698861 is an apocalyptic number.

It is an amenable number.

3858698861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3858698861 is an equidigital number, since it uses as much as digits as its factorization.

3858698861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19906560, while the sum is 62.

The square root of 3858698861 is about 62118.4260988638. The cubic root of 3858698861 is about 1568.4847323284.

The spelling of 3858698861 in words is "three billion, eight hundred fifty-eight million, six hundred ninety-eight thousand, eight hundred sixty-one".