428717762 has 18 divisors (see below), whose sum is σ = 707384307. Its totient is φ = 194871710.

The previous prime is 428717761. The next prime is 428717803. The reversal of 428717762 is 267717824.

It can be written as a sum of positive squares in only one way, i.e., 214358881 + 214358881 = 14641^2 + 14641^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14641.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (428717761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38974337 + ... + 38974347.

Almost surely, 2^428717762 is an apocalyptic number.

428717762 is a deficient number, since it is larger than the sum of its proper divisors (278666545).

428717762 is an frugal number, since it uses more digits than its factorization.

428717762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 13 counting only the distinct ones).

The product of its digits is 263424, while the sum is 44.

The square root of 428717762 is about 20705.5007667045. The cubic root of 428717762 is about 754.0332418087.

Multiplying 428717762 by its sum of digits (44), we get a cube (18863581528 = 2662³).

The spelling of 428717762 in words is "four hundred twenty-eight million, seven hundred seventeen thousand, seven hundred sixty-two".