74398071 has 16 divisors (see below), whose sum is σ = 108679680. Its totient is φ = 44896320.

The previous prime is 74398057. The next prime is 74398099. The reversal of 74398071 is 17089347.

It is not a de Polignac number, because 74398071 - 2⁶ = 74398007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74398271) 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 15 ways as a sum of consecutive naturals, for example, 3171 + ... + 12603.

It is an arithmetic number, because the mean of its divisors is an integer number (6792480).

Almost surely, 2^74398071 is an apocalyptic number.

74398071 is a deficient number, since it is larger than the sum of its proper divisors (34281609).

74398071 is a wasteful number, since it uses less digits than its factorization.

74398071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 74398071 is about 8625.4316413731. The cubic root of 74398071 is about 420.5851085340.

The spelling of 74398071 in words is "seventy-four million, three hundred ninety-eight thousand, seventy-one".