75471966 has 32 divisors (see below), whose sum is σ = 171621120. Its totient is φ = 24571512.

The previous prime is 75471953. The next prime is 75471973. The reversal of 75471966 is 66917457.

It is a happy number.

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, 13930 + ... + 18573.

It is an arithmetic number, because the mean of its divisors is an integer number (5363160).

Almost surely, 2^75471966 is an apocalyptic number.

75471966 is the 4644-th nonagonal number.

75471966 is an abundant number, since it is smaller than the sum of its proper divisors (96149154).

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

75471966 is a wasteful number, since it uses less digits than its factorization.

75471966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32557 (or 32551 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 75471966 is about 8687.4602732905. The cubic root of 75471966 is about 422.5990869683.

The spelling of 75471966 in words is "seventy-five million, four hundred seventy-one thousand, nine hundred sixty-six".