427863897 has 16 divisors (see below), whose sum is σ = 634193280. Its totient is φ = 285098256.

The previous prime is 427863881. The next prime is 427863899. The reversal of 427863897 is 798368724.

It is not a de Polignac number, because 427863897 - 2⁴ = 427863881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427863899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92983 + ... + 97475.

It is an arithmetic number, because the mean of its divisors is an integer number (39637080).

Almost surely, 2^427863897 is an apocalyptic number.

It is an amenable number.

427863897 is a deficient number, since it is larger than the sum of its proper divisors (206329383).

427863897 is a wasteful number, since it uses less digits than its factorization.

427863897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029 (or 8023 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 427863897 is about 20684.8712106215. The cubic root of 427863897 is about 753.5323135635.

The spelling of 427863897 in words is "four hundred twenty-seven million, eight hundred sixty-three thousand, eight hundred ninety-seven".