8401005 has 12 divisors (see below), whose sum is σ = 14561820. Its totient is φ = 4480512.

The previous prime is 8400979. The next prime is 8401013. The reversal of 8401005 is 5001048.

It can be written as a sum of positive squares in 2 ways, for example, as 2883204 + 5517801 = 1698^2 + 2349^2 .

It is not a de Polignac number, because 8401005 - 2¹⁵ = 8368237 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93300 + ... + 93389.

It is an arithmetic number, because the mean of its divisors is an integer number (1213485).

Almost surely, 2^8401005 is an apocalyptic number.

It is an amenable number.

8401005 is a deficient number, since it is larger than the sum of its proper divisors (6160815).

8401005 is a wasteful number, since it uses less digits than its factorization.

8401005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186700 (or 186697 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 8401005 is about 2898.4487230241. The cubic root of 8401005 is about 203.2873780106.

The spelling of 8401005 in words is "eight million, four hundred one thousand, five".