70083900 has 144 divisors (see below), whose sum is σ = 228422880. Its totient is φ = 18432000.

The previous prime is 70083899. The next prime is 70083907. The reversal of 70083900 is 938007.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70083907) 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 47 ways as a sum of consecutive naturals, for example, 272572 + ... + 272828.

It is an arithmetic number, because the mean of its divisors is an integer number (1586270).

Almost surely, 2^70083900 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 70083900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114211440).

70083900 is an abundant number, since it is smaller than the sum of its proper divisors (158338980).

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

70083900 is a wasteful number, since it uses less digits than its factorization.

70083900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 70083900 is about 8371.6127478521. The cubic root of 70083900 is about 412.2931194013.

The spelling of 70083900 in words is "seventy million, eighty-three thousand, nine hundred".