74400803 has 4 divisors (see below), whose sum is σ = 74790528. Its totient is φ = 74011080.

The previous prime is 74400787. The next prime is 74400811. The reversal of 74400803 is 30800447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30800447 = 17 ⋅1811791.

It is a cyclic number.

It is not a de Polignac number, because 74400803 - 2⁴ = 74400787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74400103) 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, 194576 + ... + 194957.

It is an arithmetic number, because the mean of its divisors is an integer number (18697632).

Almost surely, 2^74400803 is an apocalyptic number.

74400803 is a deficient number, since it is larger than the sum of its proper divisors (389725).

74400803 is a wasteful number, since it uses less digits than its factorization.

74400803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389724.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 74400803 is about 8625.5900088052. The cubic root of 74400803 is about 420.5902566265.

The spelling of 74400803 in words is "seventy-four million, four hundred thousand, eight hundred three".