70640070 has 32 divisors (see below), whose sum is σ = 169862400. Its totient is φ = 18801120.

The previous prime is 70640039. The next prime is 70640093. The reversal of 70640070 is 7004607.

It is a self number, because there is not a number n which added to its sum of digits gives 70640070.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16005 + ... + 19935.

It is an arithmetic number, because the mean of its divisors is an integer number (5308200).

Almost surely, 2^70640070 is an apocalyptic number.

70640070 is an abundant number, since it is smaller than the sum of its proper divisors (99222330).

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

70640070 is a wasteful number, since it uses less digits than its factorization.

70640070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 70640070 is about 8404.7647200859. The cubic root of 70640070 is about 413.3808687670.

Adding to 70640070 its reverse (7004607), we get a palindrome (77644677).

The spelling of 70640070 in words is "seventy million, six hundred forty thousand, seventy".