70933321 has 4 divisors (see below), whose sum is σ = 72663444. Its totient is φ = 69203200.

The previous prime is 70933309. The next prime is 70933337. The reversal of 70933321 is 12333907.

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 5953600 + 64979721 = 2440^2 + 8061^2 .

It is a cyclic number.

It is not a de Polignac number, because 70933321 - 2¹⁵ = 70900553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70933321.

It is not an unprimeable number, because it can be changed into a prime (70933361) 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, 865000 + ... + 865081.

It is an arithmetic number, because the mean of its divisors is an integer number (18165861).

Almost surely, 2^70933321 is an apocalyptic number.

It is an amenable number.

70933321 is a deficient number, since it is larger than the sum of its proper divisors (1730123).

70933321 is a wasteful number, since it uses less digits than its factorization.

70933321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730122.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 70933321 is about 8422.1921730628. The cubic root of 70933321 is about 413.9521073057.

The spelling of 70933321 in words is "seventy million, nine hundred thirty-three thousand, three hundred twenty-one".