74540705 has 16 divisors (see below), whose sum is σ = 94370880. Its totient is φ = 56365632.

The previous prime is 74540657. The next prime is 74540779. The reversal of 74540705 is 50704547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74540705 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74267 + ... + 75263.

It is an arithmetic number, because the mean of its divisors is an integer number (5898180).

Almost surely, 2^74540705 is an apocalyptic number.

74540705 is the 4985-th octagonal number.

It is an amenable number.

74540705 is a deficient number, since it is larger than the sum of its proper divisors (19830175).

74540705 is a wasteful number, since it uses less digits than its factorization.

74540705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 74540705 is about 8633.6959061575. The cubic root of 74540705 is about 420.8537151409.

The spelling of 74540705 in words is "seventy-four million, five hundred forty thousand, seven hundred five".