7901001 has 12 divisors (see below), whose sum is σ = 11781120. Its totient is φ = 5097240.

The previous prime is 7900993. The next prime is 7901041. The reversal of 7901001 is 1001097.

7901001 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7901001 - 2³ = 7900993 is a prime.

It is an Ulam number.

7901001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7901041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13881 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (981760).

Almost surely, 2^7901001 is an apocalyptic number.

It is an amenable number.

7901001 is a deficient number, since it is larger than the sum of its proper divisors (3880119).

7901001 is a wasteful number, since it uses less digits than its factorization.

7901001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28356 (or 28353 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 7901001 is about 2810.8719287794. The cubic root of 7901001 is about 199.1715816865.

Adding to 7901001 its reverse (1001097), we get a palindrome (8902098).

The spelling of 7901001 in words is "seven million, nine hundred one thousand, one".