76330405 has 8 divisors (see below), whose sum is σ = 92626200. Its totient is φ = 60377856.

The previous prime is 76330403. The next prime is 76330409. The reversal of 76330405 is 50403367.

It can be written as a sum of positive squares in 4 ways, for example, as 744769 + 75585636 = 863^2 + 8694^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76330405 - 2¹ = 76330403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76330403) 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 7 ways as a sum of consecutive naturals, for example, 85320 + ... + 86209.

It is an arithmetic number, because the mean of its divisors is an integer number (11578275).

Almost surely, 2^76330405 is an apocalyptic number.

It is an amenable number.

76330405 is a deficient number, since it is larger than the sum of its proper divisors (16295795).

76330405 is a wasteful number, since it uses less digits than its factorization.

76330405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171623.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 76330405 is about 8736.7273621191. The cubic root of 76330405 is about 424.1953031814.

The spelling of 76330405 in words is "seventy-six million, three hundred thirty thousand, four hundred five".