427700491 has 2 divisors, whose sum is σ = 427700492. Its totient is φ = 427700490.

The previous prime is 427700473. The next prime is 427700519. The reversal of 427700491 is 194007724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427700491 - 2¹¹ = 427698443 is a prime.

It is not a weakly prime, because it can be changed into another prime (427700401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213850245 + 213850246.

It is an arithmetic number, because the mean of its divisors is an integer number (213850246).

Almost surely, 2^427700491 is an apocalyptic number.

427700491 is a deficient number, since it is larger than the sum of its proper divisors (1).

427700491 is an equidigital number, since it uses as much as digits as its factorization.

427700491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 427700491 is about 20680.9209417763. The cubic root of 427700491 is about 753.4363738807.

The spelling of 427700491 in words is "four hundred twenty-seven million, seven hundred thousand, four hundred ninety-one".