70747705 has 16 divisors (see below), whose sum is σ = 97628544. Its totient is φ = 48211200.

The previous prime is 70747681. The next prime is 70747711. The reversal of 70747705 is 50774707.

It is a de Polignac number, because none of the positive numbers 2^k-70747705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 11905.

It is an arithmetic number, because the mean of its divisors is an integer number (6101784).

Almost surely, 2^70747705 is an apocalyptic number.

It is an amenable number.

70747705 is a deficient number, since it is larger than the sum of its proper divisors (26880839).

70747705 is a wasteful number, since it uses less digits than its factorization.

70747705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12576.

The product of its (nonzero) digits is 48020, while the sum is 37.

The square root of 70747705 is about 8411.1654959346. The cubic root of 70747705 is about 413.5907197771.

The spelling of 70747705 in words is "seventy million, seven hundred forty-seven thousand, seven hundred five".