75780326 has 4 divisors (see below), whose sum is σ = 113670492. Its totient is φ = 37890162.

The previous prime is 75780323. The next prime is 75780343. The reversal of 75780326 is 62308757.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 75780326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75780323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18945080 + ... + 18945083.

It is an arithmetic number, because the mean of its divisors is an integer number (28417623).

Almost surely, 2^75780326 is an apocalyptic number.

75780326 is a deficient number, since it is larger than the sum of its proper divisors (37890166).

75780326 is a wasteful number, since it uses less digits than its factorization.

75780326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37890165.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 75780326 is about 8705.1896016112. The cubic root of 75780326 is about 423.1738504109.

The spelling of 75780326 in words is "seventy-five million, seven hundred eighty thousand, three hundred twenty-six".