164198977 has 8 divisors (see below), whose sum is σ = 167076000. Its totient is φ = 161334624.

The previous prime is 164198941. The next prime is 164198987. The reversal of 164198977 is 779891461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164198977 - 2⁷ = 164198849 is a prime.

It is a super-2 number, since 2×164198977² = 53922608095693058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164198917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25149 + ... + 30997.

It is an arithmetic number, because the mean of its divisors is an integer number (20884500).

Almost surely, 2^164198977 is an apocalyptic number.

It is an amenable number.

164198977 is a deficient number, since it is larger than the sum of its proper divisors (2877023).

164198977 is an equidigital number, since it uses as much as digits as its factorization.

164198977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335.

The product of its digits is 762048, while the sum is 52.

The square root of 164198977 is about 12814.0148665436. The cubic root of 164198977 is about 547.5916481622.

The spelling of 164198977 in words is "one hundred sixty-four million, one hundred ninety-eight thousand, nine hundred seventy-seven".