75730491 has 8 divisors (see below), whose sum is σ = 112193360. Its totient is φ = 50486976.

The previous prime is 75730471. The next prime is 75730493. The reversal of 75730491 is 19403757.

It is a happy number.

It is not a de Polignac number, because 75730491 - 2¹³ = 75722299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75730493) 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, 1402390 + ... + 1402443.

It is an arithmetic number, because the mean of its divisors is an integer number (14024170).

Almost surely, 2^75730491 is an apocalyptic number.

75730491 is a deficient number, since it is larger than the sum of its proper divisors (36462869).

75730491 is a wasteful number, since it uses less digits than its factorization.

75730491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804842 (or 2804836 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 75730491 is about 8702.3267578275. The cubic root of 75730491 is about 423.0810669033.

The spelling of 75730491 in words is "seventy-five million, seven hundred thirty thousand, four hundred ninety-one".