164435477 has 2 divisors, whose sum is σ = 164435478. Its totient is φ = 164435476.

The previous prime is 164435429. The next prime is 164435507. The reversal of 164435477 is 774534461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139972561 + 24462916 = 11831^2 + 4946^2 .

It is a cyclic number.

It is not a de Polignac number, because 164435477 - 2⁶ = 164435413 is a prime.

It is a super-3 number, since 3×164435477³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164435417) 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 as a sum of consecutive naturals, namely, 82217738 + 82217739.

It is an arithmetic number, because the mean of its divisors is an integer number (82217739).

Almost surely, 2^164435477 is an apocalyptic number.

It is an amenable number.

164435477 is a deficient number, since it is larger than the sum of its proper divisors (1).

164435477 is an equidigital number, since it uses as much as digits as its factorization.

164435477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 41.

The square root of 164435477 is about 12823.2397232525. The cubic root of 164435477 is about 547.8544254750.

The spelling of 164435477 in words is "one hundred sixty-four million, four hundred thirty-five thousand, four hundred seventy-seven".