75421006 has 8 divisors (see below), whose sum is σ = 113540760. Its totient is φ = 37574088.

The previous prime is 75421001. The next prime is 75421009. The reversal of 75421006 is 60012457.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75421001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67516 + ... + 68623.

It is an arithmetic number, because the mean of its divisors is an integer number (14192595).

Almost surely, 2^75421006 is an apocalyptic number.

75421006 is a deficient number, since it is larger than the sum of its proper divisors (38119754).

75421006 is a wasteful number, since it uses less digits than its factorization.

75421006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136418.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 75421006 is about 8684.5268149739. The cubic root of 75421006 is about 422.5039501049.

The spelling of 75421006 in words is "seventy-five million, four hundred twenty-one thousand, six".