70750000 has 70 divisors (see below), whose sum is σ = 171950924. Its totient is φ = 28200000.

The previous prime is 70749997. The next prime is 70750003. The reversal of 70750000 is 5707.

It is an interprime number because it is at equal distance from previous prime (70749997) and next prime (70750003).

It is a self number, because there is not a number n which added to its sum of digits gives 70750000.

It is not an unprimeable number, because it can be changed into a prime (70750003) 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 13 ways as a sum of consecutive naturals, for example, 249859 + ... + 250141.

Almost surely, 2^70750000 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 70750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85975462).

70750000 is an abundant number, since it is smaller than the sum of its proper divisors (101200924).

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

70750000 is an frugal number, since it uses more digits than its factorization.

70750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 245, while the sum is 19.

The square root of 70750000 is about 8411.3019206304. The cubic root of 70750000 is about 413.5951919148.

Adding to 70750000 its reverse (5707), we get a palindrome (70755707).

The spelling of 70750000 in words is "seventy million, seven hundred fifty thousand".