100870477 has 2 divisors, whose sum is σ = 100870478. Its totient is φ = 100870476.

The previous prime is 100870463. The next prime is 100870519. The reversal of 100870477 is 774078001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98982601 + 1887876 = 9949^2 + 1374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100870477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100870447) 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 as a sum of consecutive naturals, namely, 50435238 + 50435239.

It is an arithmetic number, because the mean of its divisors is an integer number (50435239).

Almost surely, 2^100870477 is an apocalyptic number.

It is an amenable number.

100870477 is a deficient number, since it is larger than the sum of its proper divisors (1).

100870477 is an equidigital number, since it uses as much as digits as its factorization.

100870477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 100870477 is about 10043.4295437365. The cubic root of 100870477 is about 465.5017930672.

The spelling of 100870477 in words is "one hundred million, eight hundred seventy thousand, four hundred seventy-seven".