3858961 has 4 divisors (see below), whose sum is σ = 3953124. Its totient is φ = 3764800.

The previous prime is 3858947. The next prime is 3858971. The reversal of 3858961 is 1698583.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 690561 + 3168400 = 831^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 3858961 - 2⁵ = 3858929 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3858901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47020 + ... + 47101.

It is an arithmetic number, because the mean of its divisors is an integer number (988281).

Almost surely, 2^3858961 is an apocalyptic number.

It is an amenable number.

3858961 is a deficient number, since it is larger than the sum of its proper divisors (94163).

3858961 is an equidigital number, since it uses as much as digits as its factorization.

3858961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94162.

The product of its digits is 51840, while the sum is 40.

The square root of 3858961 is about 1964.4238341051. The cubic root of 3858961 is about 156.8520249630.

The spelling of 3858961 in words is "three million, eight hundred fifty-eight thousand, nine hundred sixty-one".