7929849 has 4 divisors (see below), whose sum is σ = 10573136. Its totient is φ = 5286564.

The previous prime is 7929833. The next prime is 7929863. The reversal of 7929849 is 9489297.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9489297 = 3 ⋅3163099.

It is not a de Polignac number, because 7929849 - 2⁴ = 7929833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7929798 and 7929807.

It is not an unprimeable number, because it can be changed into a prime (7929829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321639 + ... + 1321644.

It is an arithmetic number, because the mean of its divisors is an integer number (2643284).

Almost surely, 2^7929849 is an apocalyptic number.

It is an amenable number.

7929849 is a deficient number, since it is larger than the sum of its proper divisors (2643287).

7929849 is a wasteful number, since it uses less digits than its factorization.

7929849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643286.

The product of its digits is 326592, while the sum is 48.

The square root of 7929849 is about 2815.9987571020. The cubic root of 7929849 is about 199.4136912230.

It can be divided in two parts, 7929 and 849, that added together give a palindrome (8778).

The spelling of 7929849 in words is "seven million, nine hundred twenty-nine thousand, eight hundred forty-nine".