70721241 has 8 divisors (see below), whose sum is σ = 99841824. Its totient is φ = 44374080.

The previous prime is 70721219. The next prime is 70721257. The reversal of 70721241 is 14212707.

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

It is not a de Polignac number, because 70721241 - 2¹⁰ = 70720217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70721201) 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, 693295 + ... + 693396.

It is an arithmetic number, because the mean of its divisors is an integer number (12480228).

Almost surely, 2^70721241 is an apocalyptic number.

It is an amenable number.

70721241 is a deficient number, since it is larger than the sum of its proper divisors (29120583).

70721241 is a wasteful number, since it uses less digits than its factorization.

70721241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386711.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70721241 is about 8409.5922017658. The cubic root of 70721241 is about 413.5391438764.

Adding to 70721241 its reverse (14212707), we get a palindrome (84933948).

The spelling of 70721241 in words is "seventy million, seven hundred twenty-one thousand, two hundred forty-one".