40061477 has 2 divisors, whose sum is σ = 40061478. Its totient is φ = 40061476.

The previous prime is 40061467. The next prime is 40061479. The reversal of 40061477 is 77416004.

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., 38925121 + 1136356 = 6239^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 40061477 - 2⁸ = 40061221 is a prime.

Together with 40061479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40061479) 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, 20030738 + 20030739.

It is an arithmetic number, because the mean of its divisors is an integer number (20030739).

Almost surely, 2^40061477 is an apocalyptic number.

It is an amenable number.

40061477 is a deficient number, since it is larger than the sum of its proper divisors (1).

40061477 is an equidigital number, since it uses as much as digits as its factorization.

40061477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 40061477 is about 6329.4136379289. The cubic root of 40061477 is about 342.1703066374.

The spelling of 40061477 in words is "forty million, sixty-one thousand, four hundred seventy-seven".