70533213 has 8 divisors (see below), whose sum is σ = 94459488. Its totient is φ = 46814544.

The previous prime is 70533209. The next prime is 70533227. The reversal of 70533213 is 31233507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70533213 - 2² = 70533209 is a prime.

It is a super-2 number, since 2×70533213² = 9949868272206738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70533233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51106 + ... + 52467.

It is an arithmetic number, because the mean of its divisors is an integer number (11807436).

Almost surely, 2^70533213 is an apocalyptic number.

It is an amenable number.

70533213 is a deficient number, since it is larger than the sum of its proper divisors (23926275).

70533213 is a wasteful number, since it uses less digits than its factorization.

70533213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103803.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 70533213 is about 8398.4053843572. The cubic root of 70533213 is about 413.1723236193.

The spelling of 70533213 in words is "seventy million, five hundred thirty-three thousand, two hundred thirteen".