70618745 has 4 divisors (see below), whose sum is σ = 84742500. Its totient is φ = 56494992.

The previous prime is 70618729. The next prime is 70618759. The reversal of 70618745 is 54781607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32228329 + 38390416 = 5677^2 + 6196^2 .

It is a cyclic number.

It is not a de Polignac number, because 70618745 - 2⁴ = 70618729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70618699 and 70618708.

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, 7061870 + ... + 7061879.

It is an arithmetic number, because the mean of its divisors is an integer number (21185625).

Almost surely, 2^70618745 is an apocalyptic number.

It is an amenable number.

70618745 is a deficient number, since it is larger than the sum of its proper divisors (14123755).

70618745 is a wasteful number, since it uses less digits than its factorization.

70618745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14123754.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 70618745 is about 8403.4959986901. The cubic root of 70618745 is about 413.3392670989.

The spelling of 70618745 in words is "seventy million, six hundred eighteen thousand, seven hundred forty-five".