74432047 has 8 divisors (see below), whose sum is σ = 74994752. Its totient is φ = 73872000.

The previous prime is 74432027. The next prime is 74432053. The reversal of 74432047 is 74023447.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74432047 is a prime.

It is a super-2 number, since 2×74432047² = 11080259241220418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74432027) 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, 123547 + ... + 124147.

It is an arithmetic number, because the mean of its divisors is an integer number (9374344).

Almost surely, 2^74432047 is an apocalyptic number.

74432047 is a deficient number, since it is larger than the sum of its proper divisors (562705).

74432047 is a wasteful number, since it uses less digits than its factorization.

74432047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 74432047 is about 8627.4009411873. The cubic root of 74432047 is about 420.6491228501.

The spelling of 74432047 in words is "seventy-four million, four hundred thirty-two thousand, forty-seven".