76321305 has 16 divisors (see below), whose sum is σ = 135682560. Its totient is φ = 40704624.

The previous prime is 76321283. The next prime is 76321307. The reversal of 76321305 is 50312367.

It is a happy number.

It is not a de Polignac number, because 76321305 - 2¹³ = 76313113 is a prime.

It is a super-3 number, since 3×76321305³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (76321307) 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, 282537 + ... + 282806.

It is an arithmetic number, because the mean of its divisors is an integer number (8480160).

Almost surely, 2^76321305 is an apocalyptic number.

It is an amenable number.

76321305 is a deficient number, since it is larger than the sum of its proper divisors (59361255).

76321305 is a wasteful number, since it uses less digits than its factorization.

76321305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565357 (or 565351 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 76321305 is about 8736.2065566240. The cubic root of 76321305 is about 424.1784451955.

The spelling of 76321305 in words is "seventy-six million, three hundred twenty-one thousand, three hundred five".