74630447 has 4 divisors (see below), whose sum is σ = 75315240. Its totient is φ = 73945656.

The previous prime is 74630441. The next prime is 74630453. The reversal of 74630447 is 74403647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74403647 = 29 ⋅2565643.

It is an interprime number because it is at equal distance from previous prime (74630441) and next prime (74630453).

It is a cyclic number.

It is not a de Polignac number, because 74630447 - 2⁸ = 74630191 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74630441) 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, 342233 + ... + 342450.

It is an arithmetic number, because the mean of its divisors is an integer number (18828810).

Almost surely, 2^74630447 is an apocalyptic number.

74630447 is a deficient number, since it is larger than the sum of its proper divisors (684793).

74630447 is a wasteful number, since it uses less digits than its factorization.

74630447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684792.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 74630447 is about 8638.8915376916. The cubic root of 74630447 is about 421.0225406053.

The spelling of 74630447 in words is "seventy-four million, six hundred thirty thousand, four hundred forty-seven".