167864487 has 32 divisors (see below), whose sum is σ = 270144000. Its totient is φ = 90574848.

The previous prime is 167864479. The next prime is 167864507. The reversal of 167864487 is 784468761.

It is a happy number.

It is not a de Polignac number, because 167864487 - 2³ = 167864479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167864447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178683 + ... + 179619.

It is an arithmetic number, because the mean of its divisors is an integer number (8442000).

Almost surely, 2^167864487 is an apocalyptic number.

167864487 is a deficient number, since it is larger than the sum of its proper divisors (102279513).

167864487 is a wasteful number, since it uses less digits than its factorization.

167864487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 1806336, while the sum is 51.

The square root of 167864487 is about 12956.2528147609. The cubic root of 167864487 is about 551.6364342202.

The spelling of 167864487 in words is "one hundred sixty-seven million, eight hundred sixty-four thousand, four hundred eighty-seven".