3850981 has 2 divisors, whose sum is σ = 3850982. Its totient is φ = 3850980.

The previous prime is 3850967. The next prime is 3851009. The reversal of 3850981 is 1890583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3094081 + 756900 = 1759^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 3850981 - 2⁵ = 3850949 is a prime.

It is a super-2 number, since 2×3850981² = 29660109324722, which contains 22 as substring.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3850921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925490 + 1925491.

It is an arithmetic number, because the mean of its divisors is an integer number (1925491).

Almost surely, 2^3850981 is an apocalyptic number.

It is an amenable number.

3850981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850981 is an equidigital number, since it uses as much as digits as its factorization.

3850981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 3850981 is about 1962.3916530601. The cubic root of 3850981 is about 156.7438315105.

The spelling of 3850981 in words is "three million, eight hundred fifty thousand, nine hundred eighty-one".