74879505 has 16 divisors (see below), whose sum is σ = 133119360. Its totient is φ = 39935664.

The previous prime is 74879491. The next prime is 74879557. The reversal of 74879505 is 50597847.

74879505 is a `hidden beast` number, since 74 + 8 + 79 + 505 = 666.

It is not a de Polignac number, because 74879505 - 2¹¹ = 74877457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 277197 + ... + 277466.

It is an arithmetic number, because the mean of its divisors is an integer number (8319960).

Almost surely, 2^74879505 is an apocalyptic number.

It is an amenable number.

74879505 is a deficient number, since it is larger than the sum of its proper divisors (58239855).

74879505 is a wasteful number, since it uses less digits than its factorization.

74879505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554677 (or 554671 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 74879505 is about 8653.2944593374. The cubic root of 74879505 is about 421.4903684429.

The spelling of 74879505 in words is "seventy-four million, eight hundred seventy-nine thousand, five hundred five".