74709905 has 8 divisors (see below), whose sum is σ = 90787200. Its totient is φ = 59011056.

The previous prime is 74709889. The next prime is 74709937. The reversal of 74709905 is 50990747.

It is a happy number.

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 74709905 - 2⁴ = 74709889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94175 + ... + 94964.

It is an arithmetic number, because the mean of its divisors is an integer number (11348400).

Almost surely, 2^74709905 is an apocalyptic number.

It is an amenable number.

74709905 is a deficient number, since it is larger than the sum of its proper divisors (16077295).

74709905 is a wasteful number, since it uses less digits than its factorization.

74709905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189223.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 74709905 is about 8643.4891681543. The cubic root of 74709905 is about 421.1719065583.

The spelling of 74709905 in words is "seventy-four million, seven hundred nine thousand, nine hundred five".