7919901 has 12 divisors (see below), whose sum is σ = 12480000. Its totient is φ = 4799880.

The previous prime is 7919893. The next prime is 7919921. The reversal of 7919901 is 1099197.

It is not a de Polignac number, because 7919901 - 2³ = 7919893 is a prime.

7919901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7919921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39901 + ... + 40098.

It is an arithmetic number, because the mean of its divisors is an integer number (1040000).

Almost surely, 2^7919901 is an apocalyptic number.

It is an amenable number.

7919901 is a deficient number, since it is larger than the sum of its proper divisors (4560099).

7919901 is a wasteful number, since it uses less digits than its factorization.

7919901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80016 (or 80013 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 7919901 is about 2814.2318667800. The cubic root of 7919901 is about 199.3302681328.

The spelling of 7919901 in words is "seven million, nine hundred nineteen thousand, nine hundred one".