42086477 has 2 divisors, whose sum is σ = 42086478. Its totient is φ = 42086476.

The previous prime is 42086461. The next prime is 42086497. The reversal of 42086477 is 77468024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31967716 + 10118761 = 5654^2 + 3181^2 .

It is a cyclic number.

It is not a de Polignac number, because 42086477 - 2⁴ = 42086461 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42086477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42086497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21043238 + 21043239.

It is an arithmetic number, because the mean of its divisors is an integer number (21043239).

Almost surely, 2^42086477 is an apocalyptic number.

It is an amenable number.

42086477 is a deficient number, since it is larger than the sum of its proper divisors (1).

42086477 is an equidigital number, since it uses as much as digits as its factorization.

42086477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 42086477 is about 6487.4091130435. The cubic root of 42086477 is about 347.8410694767.

The spelling of 42086477 in words is "forty-two million, eighty-six thousand, four hundred seventy-seven".