70920986 has 8 divisors (see below), whose sum is σ = 107728320. Its totient is φ = 35011548.

The previous prime is 70920973. The next prime is 70920989. The reversal of 70920986 is 68902907.

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

It is not an unprimeable number, because it can be changed into a prime (70920989) 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, 224276 + ... + 224591.

It is an arithmetic number, because the mean of its divisors is an integer number (13466040).

Almost surely, 2^70920986 is an apocalyptic number.

70920986 is a deficient number, since it is larger than the sum of its proper divisors (36807334).

70920986 is a wasteful number, since it uses less digits than its factorization.

70920986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448948.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 70920986 is about 8421.4598496935. The cubic root of 70920986 is about 413.9281110833.

The spelling of 70920986 in words is "seventy million, nine hundred twenty thousand, nine hundred eighty-six".