70339765 has 4 divisors (see below), whose sum is σ = 84407724. Its totient is φ = 56271808.

The previous prime is 70339757. The next prime is 70339769. The reversal of 70339765 is 56793307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56793307 = 1033 ⋅54979.

It can be written as a sum of positive squares in 2 ways, for example, as 54066609 + 16273156 = 7353^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 70339765 - 2³ = 70339757 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70339769) 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, 7033972 + ... + 7033981.

It is an arithmetic number, because the mean of its divisors is an integer number (21101931).

Almost surely, 2^70339765 is an apocalyptic number.

It is an amenable number.

70339765 is a deficient number, since it is larger than the sum of its proper divisors (14067959).

70339765 is a wasteful number, since it uses less digits than its factorization.

70339765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14067958.

The product of its (nonzero) digits is 119070, while the sum is 40.

The square root of 70339765 is about 8386.8805285398. The cubic root of 70339765 is about 412.7942485784.

The spelling of 70339765 in words is "seventy million, three hundred thirty-nine thousand, seven hundred sixty-five".