70791013 has 4 divisors (see below), whose sum is σ = 70809408. Its totient is φ = 70772620.

The previous prime is 70790989. The next prime is 70791023. The reversal of 70791013 is 31019707.

It is a happy number.

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 70791013 - 2¹³ = 70782821 is a prime.

It is a super-2 number, since 2×70791013² = 10022735043132338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70791023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (17702352).

Almost surely, 2^70791013 is an apocalyptic number.

It is an amenable number.

70791013 is a deficient number, since it is larger than the sum of its proper divisors (18395).

70791013 is a wasteful number, since it uses less digits than its factorization.

70791013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 70791013 is about 8413.7395372094. The cubic root of 70791013 is about 413.6750953445.

The spelling of 70791013 in words is "seventy million, seven hundred ninety-one thousand, thirteen".