70820370 has 48 divisors (see below), whose sum is σ = 186743232. Its totient is φ = 18617760.

The previous prime is 70820363. The next prime is 70820371. The reversal of 70820370 is 7302807.

It is not an unprimeable number, because it can be changed into a prime (70820371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (3890484).

Almost surely, 2^70820370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70820370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93371616).

70820370 is an abundant number, since it is smaller than the sum of its proper divisors (115922862).

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

70820370 is a wasteful number, since it uses less digits than its factorization.

70820370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11167 (or 11164 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70820370 is about 8415.4839433036. The cubic root of 70820370 is about 413.7322710646.

The spelling of 70820370 in words is "seventy million, eight hundred twenty thousand, three hundred seventy".