7916749 has 8 divisors (see below), whose sum is σ = 8602880. Its totient is φ = 7257600.

The previous prime is 7916737. The next prime is 7916771. The reversal of 7916749 is 9476197.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7916749 is a prime.

It is an Ulam number.

It is a Duffinian number.

7916749 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916719) 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 7 ways as a sum of consecutive naturals, for example, 6132 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (1075360).

Almost surely, 2^7916749 is an apocalyptic number.

It is an amenable number.

7916749 is a deficient number, since it is larger than the sum of its proper divisors (686131).

7916749 is a wasteful number, since it uses less digits than its factorization.

7916749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13491.

The product of its digits is 95256, while the sum is 43.

The square root of 7916749 is about 2813.6718003349. The cubic root of 7916749 is about 199.3038211535.

The spelling of 7916749 in words is "seven million, nine hundred sixteen thousand, seven hundred forty-nine".