75641406 has 8 divisors (see below), whose sum is σ = 151282824. Its totient is φ = 25213800.

The previous prime is 75641387. The next prime is 75641443. The reversal of 75641406 is 60414657.

It is a sphenic number, since it is the product of 3 distinct primes.

75641406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6303445 + ... + 6303456.

It is an arithmetic number, because the mean of its divisors is an integer number (18910353).

Almost surely, 2^75641406 is an apocalyptic number.

75641406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

75641406 is a wasteful number, since it uses less digits than its factorization.

75641406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606906.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 75641406 is about 8697.2067929882. The cubic root of 75641406 is about 422.9151057214.

The spelling of 75641406 in words is "seventy-five million, six hundred forty-one thousand, four hundred six".