427886431 has 8 divisors (see below), whose sum is σ = 489393824. Its totient is φ = 366474240.

The previous prime is 427886419. The next prime is 427886443. The reversal of 427886431 is 134688724.

It is an interprime number because it is at equal distance from previous prime (427886419) and next prime (427886443).

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 427886431 - 2²¹ = 425789279 is a prime.

It is a super-2 number, since 2×427886431² = 366173595667835522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427886461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13890 + ... + 32383.

It is an arithmetic number, because the mean of its divisors is an integer number (61174228).

Almost surely, 2^427886431 is an apocalyptic number.

427886431 is a deficient number, since it is larger than the sum of its proper divisors (61507393).

427886431 is a wasteful number, since it uses less digits than its factorization.

427886431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47601.

The product of its digits is 258048, while the sum is 43.

The square root of 427886431 is about 20685.4159010642. The cubic root of 427886431 is about 753.5455419127.

It can be divided in two parts, 4278 and 86431, that added together give a palindrome (90709).

The spelling of 427886431 in words is "four hundred twenty-seven million, eight hundred eighty-six thousand, four hundred thirty-one".