70921796 has 24 divisors (see below), whose sum is σ = 136745280. Its totient is φ = 31916000.

The previous prime is 70921793. The next prime is 70921801. The reversal of 70921796 is 69712907.

It is a happy number.

It is a super-2 number, since 2×70921796² = 10059802295731232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70921793) 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 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (5697720).

Almost surely, 2^70921796 is an apocalyptic number.

It is an amenable number.

70921796 is a deficient number, since it is larger than the sum of its proper divisors (65823484).

70921796 is a wasteful number, since it uses less digits than its factorization.

70921796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16075 (or 16073 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 70921796 is about 8421.5079409806. The cubic root of 70921796 is about 413.9296869238.

It can be divided in two parts, 70921 and 796, that added together give a palindrome (71717).

The spelling of 70921796 in words is "seventy million, nine hundred twenty-one thousand, seven hundred ninety-six".