75728807 has 8 divisors (see below), whose sum is σ = 94415232. Its totient is φ = 59009400.

The previous prime is 75728777. The next prime is 75728833. The reversal of 75728807 is 70882757.

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 75728807 - 2¹⁰ = 75727783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75728837) 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, 491669 + ... + 491822.

It is an arithmetic number, because the mean of its divisors is an integer number (11801904).

Almost surely, 2^75728807 is an apocalyptic number.

75728807 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

75728807 is a deficient number, since it is larger than the sum of its proper divisors (18686425).

75728807 is a wasteful number, since it uses less digits than its factorization.

75728807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983509.

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 75728807 is about 8702.2300015571. The cubic root of 75728807 is about 423.0779308974.

The spelling of 75728807 in words is "seventy-five million, seven hundred twenty-eight thousand, eight hundred seven".