420177097 has 2 divisors, whose sum is σ = 420177098. Its totient is φ = 420177096.

The previous prime is 420177091. The next prime is 420177101. The reversal of 420177097 is 790771024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403045776 + 17131321 = 20076^2 + 4139^2 .

It is a cyclic number.

It is not a de Polignac number, because 420177097 - 2¹⁹ = 419652809 is a prime.

It is not a weakly prime, because it can be changed into another prime (420177091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210088548 + 210088549.

It is an arithmetic number, because the mean of its divisors is an integer number (210088549).

Almost surely, 2^420177097 is an apocalyptic number.

It is an amenable number.

420177097 is a deficient number, since it is larger than the sum of its proper divisors (1).

420177097 is an equidigital number, since it uses as much as digits as its factorization.

420177097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 420177097 is about 20498.2218009270. The cubic root of 420177097 is about 748.9924824097.

The spelling of 420177097 in words is "four hundred twenty million, one hundred seventy-seven thousand, ninety-seven".