86151989 has 8 divisors (see below), whose sum is σ = 107410368. Its totient is φ = 67131360.

The previous prime is 86151979. The next prime is 86152037. The reversal of 86151989 is 98915168.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86151989 is a prime.

It is a super-2 number, since 2×86151989² = 14844330417312242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86151929) 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, 559352 + ... + 559505.

It is an arithmetic number, because the mean of its divisors is an integer number (13426296).

Almost surely, 2^86151989 is an apocalyptic number.

It is an amenable number.

86151989 is a deficient number, since it is larger than the sum of its proper divisors (21258379).

86151989 is a wasteful number, since it uses less digits than its factorization.

86151989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118875.

The product of its digits is 155520, while the sum is 47.

The square root of 86151989 is about 9281.8095757239. The cubic root of 86151989 is about 441.6603742943.

The spelling of 86151989 in words is "eighty-six million, one hundred fifty-one thousand, nine hundred eighty-nine".