74642363 has 4 divisors (see below), whose sum is σ = 74723640. Its totient is φ = 74561088.

The previous prime is 74642341. The next prime is 74642387. The reversal of 74642363 is 36324647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36324647 = 41 ⋅885967.

It is a cyclic number.

It is not a de Polignac number, because 74642363 - 2⁶ = 74642299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74642663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39245 + ... + 41102.

It is an arithmetic number, because the mean of its divisors is an integer number (18680910).

Almost surely, 2^74642363 is an apocalyptic number.

74642363 is a deficient number, since it is larger than the sum of its proper divisors (81277).

74642363 is an equidigital number, since it uses as much as digits as its factorization.

74642363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81276.

The product of its digits is 72576, while the sum is 35.

The square root of 74642363 is about 8639.5811819787. The cubic root of 74642363 is about 421.0449471780.

The spelling of 74642363 in words is "seventy-four million, six hundred forty-two thousand, three hundred sixty-three".