427271901 has 16 divisors (see below), whose sum is σ = 655837824. Its totient is φ = 242371584.

The previous prime is 427271891. The next prime is 427271917. The reversal of 427271901 is 109172724.

It is not a de Polignac number, because 427271901 - 2⁵ = 427271869 is a prime.

It is a super-2 number, since 2×427271901² = 365122554768307602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427271941) 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 15 ways as a sum of consecutive naturals, for example, 71380 + ... + 77133.

It is an arithmetic number, because the mean of its divisors is an integer number (40989864).

Almost surely, 2^427271901 is an apocalyptic number.

It is an amenable number.

427271901 is a deficient number, since it is larger than the sum of its proper divisors (228565923).

427271901 is a wasteful number, since it uses less digits than its factorization.

427271901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148660.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 427271901 is about 20670.5563785787. The cubic root of 427271901 is about 753.1846219931.

The spelling of 427271901 in words is "four hundred twenty-seven million, two hundred seventy-one thousand, nine hundred one".