74318961 has 4 divisors (see below), whose sum is σ = 99091952. Its totient is φ = 49545972.

The previous prime is 74318953. The next prime is 74318963. The reversal of 74318961 is 16981347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16981347 = 3 ⋅5660449.

It is not a de Polignac number, because 74318961 - 2³ = 74318953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74318963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12386491 + ... + 12386496.

It is an arithmetic number, because the mean of its divisors is an integer number (24772988).

Almost surely, 2^74318961 is an apocalyptic number.

It is an amenable number.

74318961 is a deficient number, since it is larger than the sum of its proper divisors (24772991).

74318961 is a wasteful number, since it uses less digits than its factorization.

74318961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24772990.

The product of its digits is 36288, while the sum is 39.

The square root of 74318961 is about 8620.8445641944. The cubic root of 74318961 is about 420.4359815126.

The spelling of 74318961 in words is "seventy-four million, three hundred eighteen thousand, nine hundred sixty-one".