76478966 has 4 divisors (see below), whose sum is σ = 114718452. Its totient is φ = 38239482.

The previous prime is 76478957. The next prime is 76478977. The reversal of 76478966 is 66987467.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66987467 = 3919 ⋅17093.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19119740 + ... + 19119743.

It is an arithmetic number, because the mean of its divisors is an integer number (28679613).

Almost surely, 2^76478966 is an apocalyptic number.

76478966 is a deficient number, since it is larger than the sum of its proper divisors (38239486).

76478966 is a wasteful number, since it uses less digits than its factorization.

76478966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38239485.

The product of its digits is 3048192, while the sum is 53.

The square root of 76478966 is about 8745.2253258564. The cubic root of 76478966 is about 424.4703269996.

The spelling of 76478966 in words is "seventy-six million, four hundred seventy-eight thousand, nine hundred sixty-six".