70039872 has 168 divisors, whose sum is σ = 237744000. Its totient is φ = 19289088.

The previous prime is 70039861. The next prime is 70039873. The reversal of 70039872 is 27893007.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70039873) 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, 116629 + ... + 117227.

Almost surely, 2^70039872 is an apocalyptic number.

70039872 is a gapful number since it is divisible by the number (72) 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 70039872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118872000).

70039872 is an abundant number, since it is smaller than the sum of its proper divisors (167704128).

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

70039872 is a wasteful number, since it uses less digits than its factorization.

70039872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70039872 is about 8368.9827338811. The cubic root of 70039872 is about 412.2067645988.

The spelling of 70039872 in words is "seventy million, thirty-nine thousand, eight hundred seventy-two".