70728326 has 16 divisors (see below), whose sum is σ = 109480896. Its totient is φ = 34250496.

The previous prime is 70728323. The next prime is 70728337. The reversal of 70728326 is 62382707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70728323) by changing a digit.

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, 5240 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (6842556).

Almost surely, 2^70728326 is an apocalyptic number.

70728326 is a deficient number, since it is larger than the sum of its proper divisors (38752570).

70728326 is a wasteful number, since it uses less digits than its factorization.

70728326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70728326 is about 8410.0134363745. The cubic root of 70728326 is about 413.5529531505.

The spelling of 70728326 in words is "seventy million, seven hundred twenty-eight thousand, three hundred twenty-six".