74389497 has 64 divisors (see below), whose sum is σ = 127948800. Its totient is φ = 38187072.

The previous prime is 74389459. The next prime is 74389517. The reversal of 74389497 is 79498347.

It is a happy number.

It is not a de Polignac number, because 74389497 - 2¹⁵ = 74356729 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74389597) 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 63 ways as a sum of consecutive naturals, for example, 896218 + ... + 896300.

It is an arithmetic number, because the mean of its divisors is an integer number (1999200).

Almost surely, 2^74389497 is an apocalyptic number.

It is an amenable number.

74389497 is a deficient number, since it is larger than the sum of its proper divisors (53559303).

74389497 is a wasteful number, since it uses less digits than its factorization.

74389497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 173 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 74389497 is about 8624.9346084478. The cubic root of 74389497 is about 420.5689511470.

The spelling of 74389497 in words is "seventy-four million, three hundred eighty-nine thousand, four hundred ninety-seven".