76944947 has 4 divisors (see below), whose sum is σ = 76970016. Its totient is φ = 76919880.

The previous prime is 76944943. The next prime is 76944961. The reversal of 76944947 is 74944967.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 76944947 - 2² = 76944943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76944895 and 76944904.

It is not an unprimeable number, because it can be changed into a prime (76944943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7163 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (19242504).

Almost surely, 2^76944947 is an apocalyptic number.

76944947 is a deficient number, since it is larger than the sum of its proper divisors (25069).

76944947 is a wasteful number, since it uses less digits than its factorization.

76944947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25068.

The product of its digits is 1524096, while the sum is 50.

The square root of 76944947 is about 8771.8268906768. The cubic root of 76944947 is about 425.3306713740.

The spelling of 76944947 in words is "seventy-six million, nine hundred forty-four thousand, nine hundred forty-seven".