74387361 has 4 divisors (see below), whose sum is σ = 99183152. Its totient is φ = 49591572.

The previous prime is 74387333. The next prime is 74387381. The reversal of 74387361 is 16378347.

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: 16378347 = 3 ⋅5459449.

It is not a de Polignac number, because 74387361 - 2⁶ = 74387297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74387381) 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, 12397891 + ... + 12397896.

It is an arithmetic number, because the mean of its divisors is an integer number (24795788).

Almost surely, 2^74387361 is an apocalyptic number.

It is an amenable number.

74387361 is a deficient number, since it is larger than the sum of its proper divisors (24795791).

74387361 is a wasteful number, since it uses less digits than its factorization.

74387361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24795790.

The product of its digits is 84672, while the sum is 39.

The square root of 74387361 is about 8624.8107805331. The cubic root of 74387361 is about 420.5649257406.

The spelling of 74387361 in words is "seventy-four million, three hundred eighty-seven thousand, three hundred sixty-one".