74006641 has 4 divisors (see below), whose sum is σ = 76393984. Its totient is φ = 71619300.

The previous prime is 74006609. The next prime is 74006677. The reversal of 74006641 is 14660047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74006641 - 2⁵ = 74006609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74004641) 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, 1193625 + ... + 1193686.

It is an arithmetic number, because the mean of its divisors is an integer number (19098496).

Almost surely, 2^74006641 is an apocalyptic number.

It is an amenable number.

74006641 is a deficient number, since it is larger than the sum of its proper divisors (2387343).

74006641 is a wasteful number, since it uses less digits than its factorization.

74006641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387342.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 74006641 is about 8602.7112586672. The cubic root of 74006641 is about 419.8462040828.

Adding to 74006641 its reverse (14660047), we get a palindrome (88666688).

It can be divided in two parts, 74006 and 641, that added together give a palindrome (74647).

The spelling of 74006641 in words is "seventy-four million, six thousand, six hundred forty-one".