427770164 has 24 divisors (see below), whose sum is σ = 757306368. Its totient is φ = 211406400.

The previous prime is 427770139. The next prime is 427770181. The reversal of 427770164 is 461077724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256397 + ... + 258059.

It is an arithmetic number, because the mean of its divisors is an integer number (31554432).

Almost surely, 2^427770164 is an apocalyptic number.

It is an amenable number.

427770164 is a deficient number, since it is larger than the sum of its proper divisors (329536204).

427770164 is a wasteful number, since it uses less digits than its factorization.

427770164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 427770164 is about 20682.6053484565. The cubic root of 427770164 is about 753.4772836010.

The spelling of 427770164 in words is "four hundred twenty-seven million, seven hundred seventy thousand, one hundred sixty-four".