70821118 has 8 divisors (see below), whose sum is σ = 106408512. Its totient is φ = 35351616.

The previous prime is 70821097. The next prime is 70821119. The reversal of 70821118 is 81112807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70821119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27955 + ... + 30382.

It is an arithmetic number, because the mean of its divisors is an integer number (13301064).

Almost surely, 2^70821118 is an apocalyptic number.

70821118 is a deficient number, since it is larger than the sum of its proper divisors (35587394).

70821118 is a wasteful number, since it uses less digits than its factorization.

70821118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58946.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 70821118 is about 8415.5283850748. The cubic root of 70821118 is about 413.7337276636.

The spelling of 70821118 in words is "seventy million, eight hundred twenty-one thousand, one hundred eighteen".