76321405 has 8 divisors (see below), whose sum is σ = 92689632. Its totient is φ = 60321168.

The previous prime is 76321393. The next prime is 76321433. The reversal of 76321405 is 50412367.

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 76321405 - 2¹³ = 76313213 is a prime.

It is a super-3 number, since 3×76321405³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 91539 + ... + 92368.

It is an arithmetic number, because the mean of its divisors is an integer number (11586204).

Almost surely, 2^76321405 is an apocalyptic number.

It is an amenable number.

76321405 is a deficient number, since it is larger than the sum of its proper divisors (16368227).

76321405 is a wasteful number, since it uses less digits than its factorization.

76321405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183995.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 76321405 is about 8736.2122799300. The cubic root of 76321405 is about 424.1786304554.

The spelling of 76321405 in words is "seventy-six million, three hundred twenty-one thousand, four hundred five".