74048647 has 4 divisors (see below), whose sum is σ = 74067400. Its totient is φ = 74029896.

The previous prime is 74048633. The next prime is 74048659. The reversal of 74048647 is 74684047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74048647 - 2²³ = 65660039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74078647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (18516850).

Almost surely, 2^74048647 is an apocalyptic number.

74048647 is a deficient number, since it is larger than the sum of its proper divisors (18753).

74048647 is a wasteful number, since it uses less digits than its factorization.

74048647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18752.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 74048647 is about 8605.1523519343. The cubic root of 74048647 is about 419.9256236400.

The spelling of 74048647 in words is "seventy-four million, forty-eight thousand, six hundred forty-seven".