74370447 has 16 divisors (see below), whose sum is σ = 111420000. Its totient is φ = 49021632.

The previous prime is 74370437. The next prime is 74370449. The reversal of 74370447 is 74407347.

It is not a de Polignac number, because 74370447 - 2⁷ = 74370319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74370449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13072 + ... + 17877.

It is an arithmetic number, because the mean of its divisors is an integer number (6963750).

Almost surely, 2^74370447 is an apocalyptic number.

74370447 is a deficient number, since it is larger than the sum of its proper divisors (37049553).

74370447 is a wasteful number, since it uses less digits than its factorization.

74370447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31047 (or 31041 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The square root of 74370447 is about 8623.8301815377. The cubic root of 74370447 is about 420.5330476802.

The spelling of 74370447 in words is "seventy-four million, three hundred seventy thousand, four hundred forty-seven".