74634905 has 4 divisors (see below), whose sum is σ = 89561892. Its totient is φ = 59707920.

The previous prime is 74634881. The next prime is 74634943. The reversal of 74634905 is 50943647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48706441 + 25928464 = 6979^2 + 5092^2 .

It is not a de Polignac number, because 74634905 - 2²⁰ = 73586329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7463486 + ... + 7463495.

It is an arithmetic number, because the mean of its divisors is an integer number (22390473).

Almost surely, 2^74634905 is an apocalyptic number.

It is an amenable number.

74634905 is a deficient number, since it is larger than the sum of its proper divisors (14926987).

74634905 is a wasteful number, since it uses less digits than its factorization.

74634905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14926986.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 74634905 is about 8639.1495530521. The cubic root of 74634905 is about 421.0309236053.

The spelling of 74634905 in words is "seventy-four million, six hundred thirty-four thousand, nine hundred five".