75476820 has 48 divisors (see below), whose sum is σ = 212063040. Its totient is φ = 20057856.

The previous prime is 75476813. The next prime is 75476833. The reversal of 75476820 is 2867457.

It is a congruent number.

It is an unprimeable number.

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, 16771 + ... + 20789.

It is an arithmetic number, because the mean of its divisors is an integer number (4417980).

Almost surely, 2^75476820 is an apocalyptic number.

It is an amenable number.

75476820 is an abundant number, since it is smaller than the sum of its proper divisors (136586220).

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

75476820 is a wasteful number, since it uses less digits than its factorization.

75476820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344 (or 4342 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 75476820 is about 8687.7396369827. The cubic root of 75476820 is about 422.6081466325.

The spelling of 75476820 in words is "seventy-five million, four hundred seventy-six thousand, eight hundred twenty".