427257197 has 8 divisors (see below), whose sum is σ = 435681792. Its totient is φ = 418899600.

The previous prime is 427257163. The next prime is 427257211. The reversal of 427257197 is 791752724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427257197 - 2⁶ = 427257133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427257497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773 + ... + 29474.

It is an arithmetic number, because the mean of its divisors is an integer number (54460224).

Almost surely, 2^427257197 is an apocalyptic number.

It is an amenable number.

427257197 is a deficient number, since it is larger than the sum of its proper divisors (8424595).

427257197 is a wasteful number, since it uses less digits than its factorization.

427257197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33499.

The product of its digits is 246960, while the sum is 44.

The square root of 427257197 is about 20670.2007005254. The cubic root of 427257197 is about 753.1759819416.

The spelling of 427257197 in words is "four hundred twenty-seven million, two hundred fifty-seven thousand, one hundred ninety-seven".