70347743 has 4 divisors (see below), whose sum is σ = 70366128. Its totient is φ = 70329360.

The previous prime is 70347733. The next prime is 70347749. The reversal of 70347743 is 34774307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34774307 = 53 ⋅656119.

It is a cyclic number.

It is not a de Polignac number, because 70347743 - 2¹⁶ = 70282207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70347749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (17591532).

Almost surely, 2^70347743 is an apocalyptic number.

70347743 is a deficient number, since it is larger than the sum of its proper divisors (18385).

70347743 is a wasteful number, since it uses less digits than its factorization.

70347743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384.

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 70347743 is about 8387.3561388557. The cubic root of 70347743 is about 412.8098544879.

The spelling of 70347743 in words is "seventy million, three hundred forty-seven thousand, seven hundred forty-three".