86890423 has 2 divisors, whose sum is σ = 86890424. Its totient is φ = 86890422.

The previous prime is 86890411. The next prime is 86890457. The reversal of 86890423 is 32409868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86890423 - 2²⁵ = 53335991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86890483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43445211 + 43445212.

It is an arithmetic number, because the mean of its divisors is an integer number (43445212).

Almost surely, 2^86890423 is an apocalyptic number.

86890423 is a deficient number, since it is larger than the sum of its proper divisors (1).

86890423 is an equidigital number, since it uses as much as digits as its factorization.

86890423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 86890423 is about 9321.5032585952. The cubic root of 86890423 is about 442.9186530141.

The spelling of 86890423 in words is "eighty-six million, eight hundred ninety thousand, four hundred twenty-three".