70621708 has 18 divisors (see below), whose sum is σ = 130437636. Its totient is φ = 33451704.

The previous prime is 70621697. The next prime is 70621709. The reversal of 70621708 is 80712607.

It is a happy number.

70621708 is nontrivially palindromic in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 70621708.

It is not an unprimeable number, because it can be changed into a prime (70621709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23010 + ... + 25897.

Almost surely, 2^70621708 is an apocalyptic number.

It is an amenable number.

70621708 is a deficient number, since it is larger than the sum of its proper divisors (59815928).

70621708 is a wasteful number, since it uses less digits than its factorization.

70621708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48949 (or 48928 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 70621708 is about 8403.6722925159. The cubic root of 70621708 is about 413.3450479395.

The spelling of 70621708 in words is "seventy million, six hundred twenty-one thousand, seven hundred eight".