70282013 has 4 divisors (see below), whose sum is σ = 70576320. Its totient is φ = 69987708.

The previous prime is 70281989. The next prime is 70282019. The reversal of 70282013 is 31028207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70282013 - 2⁶ = 70281949 is a prime.

It is a super-2 number, since 2×70282013² = 9879122702664338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70282013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70282019) 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, 146795 + ... + 147272.

It is an arithmetic number, because the mean of its divisors is an integer number (17644080).

Almost surely, 2^70282013 is an apocalyptic number.

It is an amenable number.

70282013 is a deficient number, since it is larger than the sum of its proper divisors (294307).

70282013 is a wasteful number, since it uses less digits than its factorization.

70282013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294306.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 70282013 is about 8383.4368250736. The cubic root of 70282013 is about 412.6812436473.

The spelling of 70282013 in words is "seventy million, two hundred eighty-two thousand, thirteen".