74134479 has 8 divisors (see below), whose sum is σ = 99418032. Its totient is φ = 49136960.

The previous prime is 74134429. The next prime is 74134483. The reversal of 74134479 is 97443147.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74134479 - 2⁸ = 74134223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74134429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70902 + ... + 71939.

It is an arithmetic number, because the mean of its divisors is an integer number (12427254).

Almost surely, 2^74134479 is an apocalyptic number.

74134479 is a deficient number, since it is larger than the sum of its proper divisors (25283553).

74134479 is a wasteful number, since it uses less digits than its factorization.

74134479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143017.

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

The square root of 74134479 is about 8610.1381522017. The cubic root of 74134479 is about 420.0878104382.

The spelling of 74134479 in words is "seventy-four million, one hundred thirty-four thousand, four hundred seventy-nine".