74398603 has 4 divisors (see below), whose sum is σ = 75981600. Its totient is φ = 72815608.

The previous prime is 74398573. The next prime is 74398619. The reversal of 74398603 is 30689347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30689347 = 13 ⋅2360719.

It is a cyclic number.

It is not a de Polignac number, because 74398603 - 2²⁵ = 40844171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74398663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791428 + ... + 791521.

It is an arithmetic number, because the mean of its divisors is an integer number (18995400).

Almost surely, 2^74398603 is an apocalyptic number.

74398603 is a deficient number, since it is larger than the sum of its proper divisors (1582997).

74398603 is a wasteful number, since it uses less digits than its factorization.

74398603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582996.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 74398603 is about 8625.4624803543. The cubic root of 74398603 is about 420.5861110274.

The spelling of 74398603 in words is "seventy-four million, three hundred ninety-eight thousand, six hundred three".