74347887 has 8 divisors (see below), whose sum is σ = 99186480. Its totient is φ = 49537280.

The previous prime is 74347879. The next prime is 74347901. The reversal of 74347887 is 78874347.

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 74347887 - 2³ = 74347879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74347807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (12398310).

Almost surely, 2^74347887 is an apocalyptic number.

74347887 is a deficient number, since it is larger than the sum of its proper divisors (24838593).

74347887 is a wasteful number, since it uses less digits than its factorization.

74347887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13993.

The product of its digits is 1053696, while the sum is 48.

The square root of 74347887 is about 8622.5220788352. The cubic root of 74347887 is about 420.4905209983.

The spelling of 74347887 in words is "seventy-four million, three hundred forty-seven thousand, eight hundred eighty-seven".