3954859 has 2 divisors, whose sum is σ = 3954860. Its totient is φ = 3954858.

The previous prime is 3954851. The next prime is 3954871. The reversal of 3954859 is 9584593.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9584593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3954859 - 2³ = 3954851 is a prime.

3954859 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3954851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977429 + 1977430.

It is an arithmetic number, because the mean of its divisors is an integer number (1977430).

Almost surely, 2^3954859 is an apocalyptic number.

3954859 is a deficient number, since it is larger than the sum of its proper divisors (1).

3954859 is an equidigital number, since it uses as much as digits as its factorization.

3954859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 3954859 is about 1988.6827298491. The cubic root of 3954859 is about 158.1407041223.

It can be divided in two parts, 39548 and 59, that multiplied together give a palindrome (2333332).

The spelling of 3954859 in words is "three million, nine hundred fifty-four thousand, eight hundred fifty-nine".