74398 has 4 divisors (see below), whose sum is σ = 111600. Its totient is φ = 37198.

The previous prime is 74383. The next prime is 74411. The reversal of 74398 is 89347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89347 = 47 ⋅1901.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18598 + ... + 18601.

It is an arithmetic number, because the mean of its divisors is an integer number (27900).

2⁷⁴³⁹⁸ is an apocalyptic number.

74398 is a deficient number, since it is larger than the sum of its proper divisors (37202).

74398 is a wasteful number, since it uses less digits than its factorization.

74398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37201.

The product of its digits is 6048, while the sum is 31.

The square root of 74398 is about 272.7599677372. The cubic root of 74398 is about 42.0584974742.

It can be divided in two parts, 7439 and 8, that added together give a palindrome (7447).

The spelling of 74398 in words is "seventy-four thousand, three hundred ninety-eight".