70839700 has 36 divisors (see below), whose sum is σ = 155107260. Its totient is φ = 28080640.

The previous prime is 70839679. The next prime is 70839709. The reversal of 70839700 is 793807.

It can be written as a sum of positive squares in 6 ways, for example, as 20088324 + 50751376 = 4482^2 + 7124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70839709) 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 11 ways as a sum of consecutive naturals, for example, 8166 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (4308535).

Almost surely, 2^70839700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70839700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77553630).

70839700 is an abundant number, since it is smaller than the sum of its proper divisors (84267560).

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

70839700 is a wasteful number, since it uses less digits than its factorization.

70839700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70839700 is about 8416.6323431643. The cubic root of 70839700 is about 413.7699095636.

The spelling of 70839700 in words is "seventy million, eight hundred thirty-nine thousand, seven hundred".