84672487 has 2 divisors, whose sum is σ = 84672488. Its totient is φ = 84672486.

The previous prime is 84672479. The next prime is 84672527. The reversal of 84672487 is 78427648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84672487 - 2³ = 84672479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84672787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42336243 + 42336244.

It is an arithmetic number, because the mean of its divisors is an integer number (42336244).

Almost surely, 2^84672487 is an apocalyptic number.

84672487 is a deficient number, since it is larger than the sum of its proper divisors (1).

84672487 is an equidigital number, since it uses as much as digits as its factorization.

84672487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 46.

The square root of 84672487 is about 9201.7654284382. The cubic root of 84672487 is about 439.1175270766.

The spelling of 84672487 in words is "eighty-four million, six hundred seventy-two thousand, four hundred eighty-seven".