70063765 has 4 divisors (see below), whose sum is σ = 84076524. Its totient is φ = 56051008.

The previous prime is 70063717. The next prime is 70063769. The reversal of 70063765 is 56736007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56736007 = 1361 ⋅41687.

It can be written as a sum of positive squares in 2 ways, for example, as 55264356 + 14799409 = 7434^2 + 3847^2 .

It is a cyclic number.

It is not a de Polignac number, because 70063765 - 2²³ = 61675157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70063765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70063769) 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, 7006372 + ... + 7006381.

It is an arithmetic number, because the mean of its divisors is an integer number (21019131).

Almost surely, 2^70063765 is an apocalyptic number.

It is an amenable number.

70063765 is a deficient number, since it is larger than the sum of its proper divisors (14012759).

70063765 is a wasteful number, since it uses less digits than its factorization.

70063765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14012758.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 70063765 is about 8370.4100855334. The cubic root of 70063765 is about 412.2536318866.

The spelling of 70063765 in words is "seventy million, sixty-three thousand, seven hundred sixty-five".