427556351 has 2 divisors, whose sum is σ = 427556352. Its totient is φ = 427556350.

The previous prime is 427556347. The next prime is 427556369. The reversal of 427556351 is 153655724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427556351 - 2² = 427556347 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427556551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213778175 + 213778176.

It is an arithmetic number, because the mean of its divisors is an integer number (213778176).

Almost surely, 2^427556351 is an apocalyptic number.

427556351 is a deficient number, since it is larger than the sum of its proper divisors (1).

427556351 is an equidigital number, since it uses as much as digits as its factorization.

427556351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 38.

The square root of 427556351 is about 20677.4357936375. The cubic root of 427556351 is about 753.3517254540.

The spelling of 427556351 in words is "four hundred twenty-seven million, five hundred fifty-six thousand, three hundred fifty-one".