427420845 has 24 divisors (see below), whose sum is σ = 773076096. Its totient is φ = 218046048.

The previous prime is 427420841. The next prime is 427420849. The reversal of 427420845 is 548024724.

It is an interprime number because it is at equal distance from previous prime (427420841) and next prime (427420849).

It is not a de Polignac number, because 427420845 - 2² = 427420841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427420841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205449 + ... + 207518.

It is an arithmetic number, because the mean of its divisors is an integer number (32211504).

Almost surely, 2^427420845 is an apocalyptic number.

427420845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

427420845 is a deficient number, since it is larger than the sum of its proper divisors (345655251).

427420845 is a wasteful number, since it uses less digits than its factorization.

427420845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413001 (or 412998 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 427420845 is about 20674.1588704353. The cubic root of 427420845 is about 753.2721301249.

The spelling of 427420845 in words is "four hundred twenty-seven million, four hundred twenty thousand, eight hundred forty-five".