76447 has 8 divisors (see below), whose sum is σ = 89216. Its totient is φ = 64152.

The previous prime is 76441. The next prime is 76463. The reversal of 76447 is 74467.

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-76447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (11152).

2⁷⁶⁴⁴⁷ is an apocalyptic number.

76447 is a deficient number, since it is larger than the sum of its proper divisors (12769).

76447 is a wasteful number, since it uses less digits than its factorization.

76447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its digits is 4704, while the sum is 28.

The square root of 76447 is about 276.4905061661. The cubic root of 76447 is about 42.4411179977.

The spelling of 76447 in words is "seventy-six thousand, four hundred forty-seven".