86977903 has 2 divisors, whose sum is σ = 86977904. Its totient is φ = 86977902.

The previous prime is 86977901. The next prime is 86977907. The reversal of 86977903 is 30977968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86977903 - 2¹ = 86977901 is a prime.

It is a super-2 number, since 2×86977903² = 15130311220554818, which contains 22 as substring.

Together with 86977901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86977901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43488951 + 43488952.

It is an arithmetic number, because the mean of its divisors is an integer number (43488952).

Almost surely, 2^86977903 is an apocalyptic number.

86977903 is a deficient number, since it is larger than the sum of its proper divisors (1).

86977903 is an equidigital number, since it uses as much as digits as its factorization.

86977903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 86977903 is about 9326.1944543313. The cubic root of 86977903 is about 443.0672444874.

The spelling of 86977903 in words is "eighty-six million, nine hundred seventy-seven thousand, nine hundred three".