70728060 has 48 divisors (see below), whose sum is σ = 213274656. Its totient is φ = 17409792.

The previous prime is 70728037. The next prime is 70728061. The reversal of 70728060 is 6082707.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70728061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44559 + ... + 46118.

It is an arithmetic number, because the mean of its divisors is an integer number (4443222).

Almost surely, 2^70728060 is an apocalyptic number.

It is an amenable number.

70728060 is an abundant number, since it is smaller than the sum of its proper divisors (142546596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70728060 is a wasteful number, since it uses less digits than its factorization.

70728060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90702 (or 90700 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 70728060 is about 8409.9976218784. The cubic root of 70728060 is about 413.5524347103.

The spelling of 70728060 in words is "seventy million, seven hundred twenty-eight thousand, sixty".