74149377 has 4 divisors (see below), whose sum is σ = 98865840. Its totient is φ = 49432916.

The previous prime is 74149363. The next prime is 74149379. The reversal of 74149377 is 77394147.

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: 77394147 = 3 ⋅25798049.

It is a cyclic number.

It is not a de Polignac number, because 74149377 - 2¹⁹ = 73625089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74149379) 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, 12358227 + ... + 12358232.

It is an arithmetic number, because the mean of its divisors is an integer number (24716460).

Almost surely, 2^74149377 is an apocalyptic number.

It is an amenable number.

74149377 is a deficient number, since it is larger than the sum of its proper divisors (24716463).

74149377 is a wasteful number, since it uses less digits than its factorization.

74149377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24716462.

The product of its digits is 148176, while the sum is 42.

The square root of 74149377 is about 8611.0032516542. The cubic root of 74149377 is about 420.1159487129.

The spelling of 74149377 in words is "seventy-four million, one hundred forty-nine thousand, three hundred seventy-seven".