75316830 has 32 divisors (see below), whose sum is σ = 185648544. Its totient is φ = 19541376.

The previous prime is 75316781. The next prime is 75316831. The reversal of 75316830 is 3861357.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75316791 and 75316800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75316831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32817 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (5801517).

Almost surely, 2^75316830 is an apocalyptic number.

75316830 is an abundant number, since it is smaller than the sum of its proper divisors (110331714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75316830 is a wasteful number, since it uses less digits than its factorization.

75316830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67900.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 75316830 is about 8678.5269487396. The cubic root of 75316830 is about 422.3093312372.

The spelling of 75316830 in words is "seventy-five million, three hundred sixteen thousand, eight hundred thirty".