427986680 has 48 divisors (see below), whose sum is σ = 1058483160. Its totient is φ = 155629760.

The previous prime is 427986667. The next prime is 427986683. The reversal of 427986680 is 86689724.

427986680 = T₂₅₉₉ + T₂₆₀₀ + ... + T₂₇₁₉.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427986683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39374 + ... + 49053.

Almost surely, 2^427986680 is an apocalyptic number.

427986680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427986680 is an abundant number, since it is smaller than the sum of its proper divisors (630496480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427986680 is a wasteful number, since it uses less digits than its factorization.

427986680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88460 (or 88445 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 427986680 is about 20687.8389398216. The cubic root of 427986680 is about 753.6043864119.

The spelling of 427986680 in words is "four hundred twenty-seven million, nine hundred eighty-six thousand, six hundred eighty".