74479369 has 4 divisors (see below), whose sum is σ = 74530944. Its totient is φ = 74427796.

The previous prime is 74479367. The next prime is 74479393. The reversal of 74479369 is 96397447.

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: 96397447 = 137 ⋅703631.

It is a cyclic number.

It is not a de Polignac number, because 74479369 - 2¹ = 74479367 is a prime.

It is a super-2 number, since 2×74479369² = 11094352813276322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74479367) 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, 23557 + ... + 26530.

It is an arithmetic number, because the mean of its divisors is an integer number (18632736).

Almost surely, 2^74479369 is an apocalyptic number.

It is an amenable number.

74479369 is a deficient number, since it is larger than the sum of its proper divisors (51575).

74479369 is a wasteful number, since it uses less digits than its factorization.

74479369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51574.

The product of its digits is 1143072, while the sum is 49.

The square root of 74479369 is about 8630.1430463232. The cubic root of 74479369 is about 420.7382499646.

The spelling of 74479369 in words is "seventy-four million, four hundred seventy-nine thousand, three hundred sixty-nine".