70007745 has 16 divisors (see below), whose sum is σ = 116883072. Its totient is φ = 35713920.

The previous prime is 70007719. The next prime is 70007747. The reversal of 70007745 is 54770007.

It is a happy number.

It is not a de Polignac number, because 70007745 - 2⁹ = 70007233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70007747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101116 + ... + 101805.

It is an arithmetic number, because the mean of its divisors is an integer number (7305192).

Almost surely, 2^70007745 is an apocalyptic number.

It is an amenable number.

70007745 is a deficient number, since it is larger than the sum of its proper divisors (46875327).

70007745 is a wasteful number, since it uses less digits than its factorization.

70007745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202952.

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 70007745 is about 8367.0631048176. The cubic root of 70007745 is about 412.1437291130.

The spelling of 70007745 in words is "seventy million, seven thousand, seven hundred forty-five".