70938249 has 4 divisors (see below), whose sum is σ = 94584336. Its totient is φ = 47292164.

The previous prime is 70938247. The next prime is 70938253. The reversal of 70938249 is 94283907.

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 70938249 - 2¹ = 70938247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70938249.

It is not an unprimeable number, because it can be changed into a prime (70938247) 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, 11823039 + ... + 11823044.

It is an arithmetic number, because the mean of its divisors is an integer number (23646084).

Almost surely, 2^70938249 is an apocalyptic number.

It is an amenable number.

70938249 is a deficient number, since it is larger than the sum of its proper divisors (23646087).

70938249 is a wasteful number, since it uses less digits than its factorization.

70938249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23646086.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 70938249 is about 8422.4847283922. The cubic root of 70938249 is about 413.9616933447.

The spelling of 70938249 in words is "seventy million, nine hundred thirty-eight thousand, two hundred forty-nine".