74281899 has 4 divisors (see below), whose sum is σ = 99042536. Its totient is φ = 49521264.

The previous prime is 74281897. The next prime is 74281931. The reversal of 74281899 is 99818247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99818247 = 3 ⋅33272749.

It is not a de Polignac number, because 74281899 - 2¹ = 74281897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74281897) 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, 12380314 + ... + 12380319.

It is an arithmetic number, because the mean of its divisors is an integer number (24760634).

Almost surely, 2^74281899 is an apocalyptic number.

74281899 is a deficient number, since it is larger than the sum of its proper divisors (24760637).

74281899 is a wasteful number, since it uses less digits than its factorization.

74281899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24760636.

The product of its digits is 290304, while the sum is 48.

The square root of 74281899 is about 8618.6947387641. The cubic root of 74281899 is about 420.3660810499.

The spelling of 74281899 in words is "seventy-four million, two hundred eighty-one thousand, eight hundred ninety-nine".