84660887 has 2 divisors, whose sum is σ = 84660888. Its totient is φ = 84660886.

The previous prime is 84660883. The next prime is 84660893. The reversal of 84660887 is 78806648.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84660887 - 2² = 84660883 is a prime.

It is a super-3 number, since 3×84660887³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84660883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42330443 + 42330444.

It is an arithmetic number, because the mean of its divisors is an integer number (42330444).

Almost surely, 2^84660887 is an apocalyptic number.

84660887 is a deficient number, since it is larger than the sum of its proper divisors (1).

84660887 is an equidigital number, since it uses as much as digits as its factorization.

84660887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 84660887 is about 9201.1350930198. The cubic root of 84660887 is about 439.0974733530.

The spelling of 84660887 in words is "eighty-four million, six hundred sixty thousand, eight hundred eighty-seven".