427694784 has 112 divisors (see below), whose sum is σ = 1277233920. Its totient is φ = 125117440.

The previous prime is 427694777. The next prime is 427694797. The reversal of 427694784 is 487496724.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57757 + ... + 64739.

Almost surely, 2^427694784 is an apocalyptic number.

427694784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427694784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638616960).

427694784 is an abundant number, since it is smaller than the sum of its proper divisors (849539136).

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

427694784 is a wasteful number, since it uses less digits than its factorization.

427694784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038 (or 7028 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The square root of 427694784 is about 20680.7829639015. The cubic root of 427694784 is about 753.4330227190.

The spelling of 427694784 in words is "four hundred twenty-seven million, six hundred ninety-four thousand, seven hundred eighty-four".