86290019 has 4 divisors (see below), whose sum is σ = 89073600. Its totient is φ = 83506440.

The previous prime is 86290013. The next prime is 86290027. The reversal of 86290019 is 91009268.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86290019 - 2¹² = 86285923 is a prime.

It is a super-2 number, since 2×86290019² = 14891934758040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86290013) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1391744 + ... + 1391805.

It is an arithmetic number, because the mean of its divisors is an integer number (22268400).

Almost surely, 2^86290019 is an apocalyptic number.

86290019 is a deficient number, since it is larger than the sum of its proper divisors (2783581).

86290019 is a wasteful number, since it uses less digits than its factorization.

86290019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783580.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 86290019 is about 9289.2421111735. The cubic root of 86290019 is about 441.8961198790.

The spelling of 86290019 in words is "eighty-six million, two hundred ninety thousand, nineteen".