76999447 has 16 divisors (see below), whose sum is σ = 89413632. Its totient is φ = 64948320.

The previous prime is 76999441. The next prime is 76999463. The reversal of 76999447 is 74499967.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 76999447 - 2¹⁵ = 76966679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76999441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166797 + ... + 167257.

It is an arithmetic number, because the mean of its divisors is an integer number (5588352).

Almost surely, 2^76999447 is an apocalyptic number.

76999447 is a deficient number, since it is larger than the sum of its proper divisors (12414185).

76999447 is a wasteful number, since it uses less digits than its factorization.

76999447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its digits is 3429216, while the sum is 55.

The square root of 76999447 is about 8774.9328772362. The cubic root of 76999447 is about 425.4310680504.

The spelling of 76999447 in words is "seventy-six million, nine hundred ninety-nine thousand, four hundred forty-seven".