70013850 has 48 divisors (see below), whose sum is σ = 174953088. Its totient is φ = 18528640.

The previous prime is 70013849. The next prime is 70013851. The reversal of 70013850 is 5831007.

It is an interprime number because it is at equal distance from previous prime (70013849) and next prime (70013851).

It is a self number, because there is not a number n which added to its sum of digits gives 70013850.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70013851) 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, 18847 + ... + 22253.

It is an arithmetic number, because the mean of its divisors is an integer number (3644856).

Almost surely, 2^70013850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70013850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87476544).

70013850 is an abundant number, since it is smaller than the sum of its proper divisors (104939238).

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

70013850 is a wasteful number, since it uses less digits than its factorization.

70013850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 70013850 is about 8367.4279202154. The cubic root of 70013850 is about 412.1557090462.

Adding to 70013850 its reverse (5831007), we get a palindrome (75844857).

The spelling of 70013850 in words is "seventy million, thirteen thousand, eight hundred fifty".