70744816 has 40 divisors (see below), whose sum is σ = 140477120. Its totient is φ = 34504704.

The previous prime is 70744813. The next prime is 70744853. The reversal of 70744816 is 61844707.

70744816 = 20² + 21² + ... + 596².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70744813) 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, 122320 + ... + 122896.

It is an arithmetic number, because the mean of its divisors is an integer number (3511928).

Almost surely, 2^70744816 is an apocalyptic number.

It is an amenable number.

70744816 is a deficient number, since it is larger than the sum of its proper divisors (69732304).

70744816 is a wasteful number, since it uses less digits than its factorization.

70744816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 70744816 is about 8410.9937581715. The cubic root of 70744816 is about 413.5850900075.

The spelling of 70744816 in words is "seventy million, seven hundred forty-four thousand, eight hundred sixteen".