100664477 has 2 divisors, whose sum is σ = 100664478. Its totient is φ = 100664476.

The previous prime is 100664467. The next prime is 100664483. The reversal of 100664477 is 774466001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100420441 + 244036 = 10021^2 + 494^2 .

It is an emirp because it is prime and its reverse (774466001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100664477 - 2¹² = 100660381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100664467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50332238 + 50332239.

It is an arithmetic number, because the mean of its divisors is an integer number (50332239).

Almost surely, 2^100664477 is an apocalyptic number.

It is an amenable number.

100664477 is a deficient number, since it is larger than the sum of its proper divisors (1).

100664477 is an equidigital number, since it uses as much as digits as its factorization.

100664477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 100664477 is about 10033.1688413980. The cubic root of 100664477 is about 465.1846909611.

The spelling of 100664477 in words is "one hundred million, six hundred sixty-four thousand, four hundred seventy-seven".