164077387 has 4 divisors (see below), whose sum is σ = 173729016. Its totient is φ = 154425760.

The previous prime is 164077339. The next prime is 164077393. The reversal of 164077387 is 783770461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783770461 = 7603 ⋅103087.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164077387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164077337) 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 in 3 ways as a sum of consecutive naturals, for example, 4825789 + ... + 4825822.

It is an arithmetic number, because the mean of its divisors is an integer number (43432254).

Almost surely, 2^164077387 is an apocalyptic number.

164077387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164077387 is a deficient number, since it is larger than the sum of its proper divisors (9651629).

164077387 is an equidigital number, since it uses as much as digits as its factorization.

164077387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651628.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 164077387 is about 12809.2695732427. The cubic root of 164077387 is about 547.4564501824.

The spelling of 164077387 in words is "one hundred sixty-four million, seventy-seven thousand, three hundred eighty-seven".