70721796 has 24 divisors (see below), whose sum is σ = 165219264. Its totient is φ = 23545120.

The previous prime is 70721789. The next prime is 70721797. The reversal of 70721796 is 69712707.

It is not an unprimeable number, because it can be changed into a prime (70721797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8161 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (6884136).

Almost surely, 2^70721796 is an apocalyptic number.

It is an amenable number.

70721796 is an abundant number, since it is smaller than the sum of its proper divisors (94497468).

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

70721796 is a wasteful number, since it uses less digits than its factorization.

70721796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211 (or 7209 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 70721796 is about 8409.6251997339. The cubic root of 70721796 is about 413.5402256524.

It can be divided in two parts, 70721 and 796, that added together give a palindrome (71517).

The spelling of 70721796 in words is "seventy million, seven hundred twenty-one thousand, seven hundred ninety-six".