70501613 has 16 divisors (see below), whose sum is σ = 89120640. Its totient is φ = 54271296.

The previous prime is 70501597. The next prime is 70501631. The reversal of 70501613 is 31610507.

It is a cyclic number.

It is not a de Polignac number, because 70501613 - 2⁴ = 70501597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70501643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7103 + ... + 13836.

It is an arithmetic number, because the mean of its divisors is an integer number (5570040).

Almost surely, 2^70501613 is an apocalyptic number.

It is an amenable number.

70501613 is a deficient number, since it is larger than the sum of its proper divisors (18619027).

70501613 is a wasteful number, since it uses less digits than its factorization.

70501613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20996.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 70501613 is about 8396.5238640761. The cubic root of 70501613 is about 413.1106118140.

The spelling of 70501613 in words is "seventy million, five hundred one thousand, six hundred thirteen".