70722236 has 24 divisors (see below), whose sum is σ = 134346240. Its totient is φ = 32380992.

The previous prime is 70722221. The next prime is 70722247. The reversal of 70722236 is 63222707.

It is a junction number, because it is equal to n+sod(n) for n = 70722199 and 70722208.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1250 + ... + 11958.

It is an arithmetic number, because the mean of its divisors is an integer number (5597760).

Almost surely, 2^70722236 is an apocalyptic number.

It is an amenable number.

70722236 is a deficient number, since it is larger than the sum of its proper divisors (63624004).

70722236 is a wasteful number, since it uses less digits than its factorization.

70722236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853 (or 10851 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 70722236 is about 8409.6513601932. The cubic root of 70722236 is about 413.5410832726.

The spelling of 70722236 in words is "seventy million, seven hundred twenty-two thousand, two hundred thirty-six".