70641030 has 16 divisors (see below), whose sum is σ = 169538544. Its totient is φ = 18837600.

The previous prime is 70640963. The next prime is 70641037. The reversal of 70641030 is 3014607.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70640988 and 70641006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70641037) 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 7 ways as a sum of consecutive naturals, for example, 1177321 + ... + 1177380.

It is an arithmetic number, because the mean of its divisors is an integer number (10596159).

Almost surely, 2^70641030 is an apocalyptic number.

70641030 is an abundant number, since it is smaller than the sum of its proper divisors (98897514).

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

70641030 is a wasteful number, since it uses less digits than its factorization.

70641030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354711.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 70641030 is about 8404.8218303543. The cubic root of 70641030 is about 413.3827413767.

Adding to 70641030 its reverse (3014607), we get a palindrome (73655637).

The spelling of 70641030 in words is "seventy million, six hundred forty-one thousand, thirty".