74421807 has 8 divisors (see below), whose sum is σ = 99514800. Its totient is φ = 49471680.

The previous prime is 74421779. The next prime is 74421827. The reversal of 74421807 is 70812447.

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

It is not a de Polignac number, because 74421807 - 2⁷ = 74421679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74421827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34494 + ... + 36587.

It is an arithmetic number, because the mean of its divisors is an integer number (12439350).

Almost surely, 2^74421807 is an apocalyptic number.

74421807 is a deficient number, since it is larger than the sum of its proper divisors (25092993).

74421807 is a wasteful number, since it uses less digits than its factorization.

74421807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71433.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 74421807 is about 8626.8074627871. The cubic root of 74421807 is about 420.6298316768.

The spelling of 74421807 in words is "seventy-four million, four hundred twenty-one thousand, eight hundred seven".