70613 has 4 divisors (see below), whose sum is σ = 71148. Its totient is φ = 70080.

The previous prime is 70607. The next prime is 70619. The reversal of 70613 is 31607.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (70607) and next prime (70619).

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 9604 = 247^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 70613 - 2⁶ = 70549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70591 and 70600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70619) 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, 95 + ... + 387.

It is an arithmetic number, because the mean of its divisors is an integer number (17787).

2⁷⁰⁶¹³ is an apocalyptic number.

It is an amenable number.

70613 is a deficient number, since it is larger than the sum of its proper divisors (535).

70613 is a wasteful number, since it uses less digits than its factorization.

70613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 70613 is about 265.7310670584. The cubic root of 70613 is about 41.3328058090.

The spelling of 70613 in words is "seventy thousand, six hundred thirteen".