7949121 has 8 divisors (see below), whose sum is σ = 10857504. Its totient is φ = 5170080.

The previous prime is 7949119. The next prime is 7949141. The reversal of 7949121 is 1219497.

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

It is not a de Polignac number, because 7949121 - 2¹ = 7949119 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7949101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32191 + ... + 32436.

It is an arithmetic number, because the mean of its divisors is an integer number (1357188).

Almost surely, 2^7949121 is an apocalyptic number.

It is an amenable number.

7949121 is a deficient number, since it is larger than the sum of its proper divisors (2908383).

7949121 is a wasteful number, since it uses less digits than its factorization.

7949121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64671.

The product of its digits is 4536, while the sum is 33.

The square root of 7949121 is about 2819.4185570787. The cubic root of 7949121 is about 199.5751062993.

The spelling of 7949121 in words is "seven million, nine hundred forty-nine thousand, one hundred twenty-one".