76329421 has 16 divisors (see below), whose sum is σ = 91785600. Its totient is φ = 62088768.

The previous prime is 76329419. The next prime is 76329467. The reversal of 76329421 is 12492367.

It is not a de Polignac number, because 76329421 - 2¹ = 76329419 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 (76329481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8791 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (5736600).

Almost surely, 2^76329421 is an apocalyptic number.

It is an amenable number.

76329421 is a deficient number, since it is larger than the sum of its proper divisors (15456179).

76329421 is a wasteful number, since it uses less digits than its factorization.

76329421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468.

The product of its digits is 18144, while the sum is 34.

The square root of 76329421 is about 8736.6710479450. The cubic root of 76329421 is about 424.1934803605.

The spelling of 76329421 in words is "seventy-six million, three hundred twenty-nine thousand, four hundred twenty-one".