70881233 has 8 divisors (see below), whose sum is σ = 73108200. Its totient is φ = 68670720.

The previous prime is 70881227. The next prime is 70881247. The reversal of 70881233 is 33218807.

It can be written as a sum of positive squares in 4 ways, for example, as 32341969 + 38539264 = 5687^2 + 6208^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70881233 - 2¹⁰ = 70880209 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 70881233.

It is not an unprimeable number, because it can be changed into a prime (70881203) 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, 4943 + ... + 12891.

It is an arithmetic number, because the mean of its divisors is an integer number (9138525).

Almost surely, 2^70881233 is an apocalyptic number.

It is an amenable number.

70881233 is a deficient number, since it is larger than the sum of its proper divisors (2226967).

70881233 is a wasteful number, since it uses less digits than its factorization.

70881233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 70881233 is about 8419.0992986186. The cubic root of 70881233 is about 413.8507575826.

The spelling of 70881233 in words is "seventy million, eight hundred eighty-one thousand, two hundred thirty-three".