8401939 has 16 divisors (see below), whose sum is σ = 10436608. Its totient is φ = 6586272.

The previous prime is 8401919. The next prime is 8401949. The reversal of 8401939 is 9391048.

It is not a de Polignac number, because 8401939 - 2⁵ = 8401907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8401919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11194 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (652288).

Almost surely, 2^8401939 is an apocalyptic number.

8401939 is a deficient number, since it is larger than the sum of its proper divisors (2034669).

8401939 is a wasteful number, since it uses less digits than its factorization.

8401939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 8401939 is about 2898.6098392160. The cubic root of 8401939 is about 203.2949113702.

The spelling of 8401939 in words is "eight million, four hundred one thousand, nine hundred thirty-nine".