70939216 has 10 divisors (see below), whose sum is σ = 137444762. Its totient is φ = 35469600.

The previous prime is 70939213. The next prime is 70939223. The reversal of 70939216 is 61293907.

It can be written as a sum of positive squares in only one way, i.e., 40908816 + 30030400 = 6396^2 + 5480^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70939213) 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, 2216835 + ... + 2216866.

Almost surely, 2^70939216 is an apocalyptic number.

It is an amenable number.

70939216 is a deficient number, since it is larger than the sum of its proper divisors (66505546).

70939216 is a wasteful number, since it uses less digits than its factorization.

70939216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433709 (or 4433703 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 70939216 is about 8422.5421340591. The cubic root of 70939216 is about 413.9635743194.

The spelling of 70939216 in words is "seventy million, nine hundred thirty-nine thousand, two hundred sixteen".