68650989 has 16 divisors (see below), whose sum is σ = 100222464. Its totient is φ = 41454000.

The previous prime is 68650987. The next prime is 68650991. The reversal of 68650989 is 98905686.

It is an interprime number because it is at equal distance from previous prime (68650987) and next prime (68650991).

It is not a de Polignac number, because 68650989 - 2¹ = 68650987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68650987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5664 + ... + 13014.

It is an arithmetic number, because the mean of its divisors is an integer number (6263904).

Almost surely, 2^68650989 is an apocalyptic number.

It is an amenable number.

68650989 is a deficient number, since it is larger than the sum of its proper divisors (31571475).

68650989 is a wasteful number, since it uses less digits than its factorization.

68650989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 68650989 is about 8285.5892367411. The cubic root of 68650989 is about 409.4638818644.

The spelling of 68650989 in words is "sixty-eight million, six hundred fifty thousand, nine hundred eighty-nine".