70535321 has 4 divisors (see below), whose sum is σ = 70636644. Its totient is φ = 70434000.

The previous prime is 70535303. The next prime is 70535341. The reversal of 70535321 is 12353507.

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 63027721 + 7507600 = 7939^2 + 2740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70535321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70535341) 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, 49610 + ... + 51011.

It is an arithmetic number, because the mean of its divisors is an integer number (17659161).

Almost surely, 2^70535321 is an apocalyptic number.

It is an amenable number.

70535321 is a deficient number, since it is larger than the sum of its proper divisors (101323).

70535321 is a wasteful number, since it uses less digits than its factorization.

70535321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101322.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 70535321 is about 8398.5308834343. The cubic root of 70535321 is about 413.1764396876.

Adding to 70535321 its reverse (12353507), we get a palindrome (82888828).

The spelling of 70535321 in words is "seventy million, five hundred thirty-five thousand, three hundred twenty-one".