76916449 has 8 divisors (see below), whose sum is σ = 82249128. Its totient is φ = 71673600.

The previous prime is 76916447. The next prime is 76916461. The reversal of 76916449 is 94461967.

It can be written as a sum of positive squares in 4 ways, for example, as 34105600 + 42810849 = 5840^2 + 6543^2 .

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 76916449 - 2¹ = 76916447 is a prime.

It is a super-2 number, since 2×76916449² = 11832280253539202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76916399 and 76916408.

It is not an unprimeable number, because it can be changed into a prime (76916447) 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, 20682 + ... + 24115.

It is an arithmetic number, because the mean of its divisors is an integer number (10281141).

Almost surely, 2^76916449 is an apocalyptic number.

It is an amenable number.

76916449 is a deficient number, since it is larger than the sum of its proper divisors (5332679).

76916449 is a wasteful number, since it uses less digits than its factorization.

76916449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44915.

The product of its digits is 326592, while the sum is 46.

The square root of 76916449 is about 8770.2023351802. The cubic root of 76916449 is about 425.2781551674.

The spelling of 76916449 in words is "seventy-six million, nine hundred sixteen thousand, four hundred forty-nine".