70442705 has 4 divisors (see below), whose sum is σ = 84531252. Its totient is φ = 56354160.

The previous prime is 70442689. The next prime is 70442719. The reversal of 70442705 is 50724407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50724407 = 23 ⋅2205409.

It can be written as a sum of positive squares in 2 ways, for example, as 25230529 + 45212176 = 5023^2 + 6724^2 .

It is not a de Polignac number, because 70442705 - 2⁴ = 70442689 is a prime.

It is a Duffinian number.

It is a Curzon 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, 7044266 + ... + 7044275.

It is an arithmetic number, because the mean of its divisors is an integer number (21132813).

Almost surely, 2^70442705 is an apocalyptic number.

It is an amenable number.

70442705 is a deficient number, since it is larger than the sum of its proper divisors (14088547).

70442705 is a wasteful number, since it uses less digits than its factorization.

70442705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088546.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 70442705 is about 8393.0152507904. The cubic root of 70442705 is about 412.9955208257.

The spelling of 70442705 in words is "seventy million, four hundred forty-two thousand, seven hundred five".