70921244 has 6 divisors (see below), whose sum is σ = 124112184. Its totient is φ = 35460620.

The previous prime is 70921241. The next prime is 70921247. The reversal of 70921244 is 44212907.

It is an interprime number because it is at equal distance from previous prime (70921241) and next prime (70921247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70921241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8865152 + ... + 8865159.

It is an arithmetic number, because the mean of its divisors is an integer number (20685364).

Almost surely, 2^70921244 is an apocalyptic number.

It is an amenable number.

70921244 is a deficient number, since it is larger than the sum of its proper divisors (53190940).

70921244 is a wasteful number, since it uses less digits than its factorization.

70921244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17730315 (or 17730313 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 70921244 is about 8421.4751676889. The cubic root of 70921244 is about 413.9286130190.

The spelling of 70921244 in words is "seventy million, nine hundred twenty-one thousand, two hundred forty-four".