89971012 has 6 divisors (see below), whose sum is σ = 157449278. Its totient is φ = 44985504.

The previous prime is 89971001. The next prime is 89971027. The reversal of 89971012 is 21017998.

It can be written as a sum of positive squares in only one way, i.e., 88472836 + 1498176 = 9406^2 + 1224^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246373 + ... + 11246380.

Almost surely, 2^89971012 is an apocalyptic number.

It is an amenable number.

89971012 is a deficient number, since it is larger than the sum of its proper divisors (67478266).

89971012 is a wasteful number, since it uses less digits than its factorization.

89971012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22492757 (or 22492755 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 89971012 is about 9485.3050557164. The cubic root of 89971012 is about 448.0923558000.

The spelling of 89971012 in words is "eighty-nine million, nine hundred seventy-one thousand, twelve".