76478 has 4 divisors (see below), whose sum is σ = 114720. Its totient is φ = 38238.

The previous prime is 76471. The next prime is 76481. The reversal of 76478 is 87467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87467 = 47 ⋅1861.

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 (76471) by changing a digit.

76478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19118 + ... + 19121.

It is an arithmetic number, because the mean of its divisors is an integer number (28680).

2⁷⁶⁴⁷⁸ is an apocalyptic number.

76478 is a deficient number, since it is larger than the sum of its proper divisors (38242).

76478 is a wasteful number, since it uses less digits than its factorization.

76478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38241.

The product of its digits is 9408, while the sum is 32.

The square root of 76478 is about 276.5465602751. The cubic root of 76478 is about 42.4468539841.

The spelling of 76478 in words is "seventy-six thousand, four hundred seventy-eight".