403678061 has 2 divisors, whose sum is σ = 403678062. Its totient is φ = 403678060.

The previous prime is 403678031. The next prime is 403678081. The reversal of 403678061 is 160876304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391644100 + 12033961 = 19790^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 403678061 - 2⁶ = 403677997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403678021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201839030 + 201839031.

It is an arithmetic number, because the mean of its divisors is an integer number (201839031).

Almost surely, 2^403678061 is an apocalyptic number.

It is an amenable number.

403678061 is a deficient number, since it is larger than the sum of its proper divisors (1).

403678061 is an equidigital number, since it uses as much as digits as its factorization.

403678061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 403678061 is about 20091.7411141991. The cubic root of 403678061 is about 739.0577616822.

The spelling of 403678061 in words is "four hundred three million, six hundred seventy-eight thousand, sixty-one".