70671020 has 48 divisors (see below), whose sum is σ = 170784768. Its totient is φ = 24062400.

The previous prime is 70671017. The next prime is 70671031. The reversal of 70671020 is 2017607.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19469 + ... + 22811.

It is an arithmetic number, because the mean of its divisors is an integer number (3558016).

Almost surely, 2^70671020 is an apocalyptic number.

70671020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70671020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85392384).

70671020 is an abundant number, since it is smaller than the sum of its proper divisors (100113748).

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

70671020 is a wasteful number, since it uses less digits than its factorization.

70671020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 70671020 is about 8406.6057359674. The cubic root of 70671020 is about 413.4412323813.

Adding to 70671020 its reverse (2017607), we get a palindrome (72688627).

The spelling of 70671020 in words is "seventy million, six hundred seventy-one thousand, twenty".