427637772 has 48 divisors (see below), whose sum is σ = 1132293120. Its totient is φ = 139511376.

The previous prime is 427637753. The next prime is 427637773. The reversal of 427637772 is 277736724.

427637772 is a `hidden beast` number, since 4 + 2 + 7 + 637 + 7 + 7 + 2 = 666.

It is a super-2 number, since 2×427637772² = 365748128082247968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427637773) 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, 37048 + ... + 47199.

It is an arithmetic number, because the mean of its divisors is an integer number (23589440).

Almost surely, 2^427637772 is an apocalyptic number.

It is an amenable number.

427637772 is an abundant number, since it is smaller than the sum of its proper divisors (704655348).

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

427637772 is a wasteful number, since it uses less digits than its factorization.

427637772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84307 (or 84299 counting only the distinct ones).

The product of its digits is 691488, while the sum is 45.

The square root of 427637772 is about 20679.4045368816. The cubic root of 427637772 is about 753.3995435232.

The spelling of 427637772 in words is "four hundred twenty-seven million, six hundred thirty-seven thousand, seven hundred seventy-two".