76743321 has 16 divisors (see below), whose sum is σ = 111840768. Its totient is φ = 46598400.

The previous prime is 76743313. The next prime is 76743323. The reversal of 76743321 is 12334767.

It is not a de Polignac number, because 76743321 - 2³ = 76743313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76743323) 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, 22690 + ... + 25851.

It is an arithmetic number, because the mean of its divisors is an integer number (6990048).

Almost surely, 2^76743321 is an apocalyptic number.

It is an amenable number.

76743321 is a deficient number, since it is larger than the sum of its proper divisors (35097447).

76743321 is a wasteful number, since it uses less digits than its factorization.

76743321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48592.

The product of its digits is 21168, while the sum is 33.

The square root of 76743321 is about 8760.3265350100. The cubic root of 76743321 is about 424.9588352287.

The spelling of 76743321 in words is "seventy-six million, seven hundred forty-three thousand, three hundred twenty-one".