70819470 has 48 divisors (see below), whose sum is σ = 187265520. Its totient is φ = 18563712.

The previous prime is 70819457. The next prime is 70819477. The reversal of 70819470 is 7491807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70819477) 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 23 ways as a sum of consecutive naturals, for example, 1359 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (3901365).

Almost surely, 2^70819470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70819470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93632760).

70819470 is an abundant number, since it is smaller than the sum of its proper divisors (116446050).

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

70819470 is a wasteful number, since it uses less digits than its factorization.

70819470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13409 (or 13406 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 70819470 is about 8415.4304702730. The cubic root of 70819470 is about 413.7305184585.

It can be divided in two parts, 70819 and 470, that added together give a square (71289 = 267²).

The spelling of 70819470 in words is "seventy million, eight hundred nineteen thousand, four hundred seventy".