74713647 has 8 divisors (see below), whose sum is σ = 101306880. Its totient is φ = 48964760.

The previous prime is 74713633. The next prime is 74713649. The reversal of 74713647 is 74631747.

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

It is a cyclic number.

It is not a de Polignac number, because 74713647 - 2⁸ = 74713391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74713649) 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, 210879 + ... + 211232.

It is an arithmetic number, because the mean of its divisors is an integer number (12663360).

Almost surely, 2^74713647 is an apocalyptic number.

74713647 is a deficient number, since it is larger than the sum of its proper divisors (26593233).

74713647 is a wasteful number, since it uses less digits than its factorization.

74713647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422173.

The product of its digits is 98784, while the sum is 39.

The square root of 74713647 is about 8643.7056289534. The cubic root of 74713647 is about 421.1789381961.

The spelling of 74713647 in words is "seventy-four million, seven hundred thirteen thousand, six hundred forty-seven".