70287930 has 48 divisors (see below), whose sum is σ = 183811680. Its totient is φ = 18634464.

The previous prime is 70287923. The next prime is 70287937. The reversal of 70287930 is 3978207.

It is an interprime number because it is at equal distance from previous prime (70287923) and next prime (70287937).

It is not an unprimeable number, because it can be changed into a prime (70287937) 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, 13929 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (3829410).

Almost surely, 2^70287930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70287930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91905840).

70287930 is an abundant number, since it is smaller than the sum of its proper divisors (113523750).

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

70287930 is a wasteful number, since it uses less digits than its factorization.

70287930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555 (or 4552 counting only the distinct ones).

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

The square root of 70287930 is about 8383.7897158743. The cubic root of 70287930 is about 412.6928244501.

It can be divided in two parts, 70287 and 930, that added together give a palindrome (71217).

The spelling of 70287930 in words is "seventy million, two hundred eighty-seven thousand, nine hundred thirty".