7905901 has 8 divisors (see below), whose sum is σ = 8597880. Its totient is φ = 7239168.

The previous prime is 7905889. The next prime is 7905929. The reversal of 7905901 is 1095097.

It can be written as a sum of positive squares in 4 ways, for example, as 6380676 + 1525225 = 2526^2 + 1235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7905901 - 2⁵ = 7905869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7905991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (1074735).

Almost surely, 2^7905901 is an apocalyptic number.

It is an amenable number.

7905901 is a deficient number, since it is larger than the sum of its proper divisors (691979).

7905901 is a wasteful number, since it uses less digits than its factorization.

7905901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 7905901 is about 2811.7434093459. The cubic root of 7905901 is about 199.2127468954.

The spelling of 7905901 in words is "seven million, nine hundred five thousand, nine hundred one".