427074817 has 16 divisors (see below), whose sum is σ = 481879552. Its totient is φ = 375788160.

The previous prime is 427074797. The next prime is 427074827. The reversal of 427074817 is 718470724.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427074817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427074817.

It is not an unprimeable number, because it can be changed into a prime (427074827) 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, 19093 + ... + 34909.

It is an arithmetic number, because the mean of its divisors is an integer number (30117472).

Almost surely, 2^427074817 is an apocalyptic number.

It is an amenable number.

427074817 is a deficient number, since it is larger than the sum of its proper divisors (54804735).

427074817 is a wasteful number, since it uses less digits than its factorization.

427074817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928.

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 427074817 is about 20665.7885646786. The cubic root of 427074817 is about 753.0687992061.

It can be divided in two parts, 42707 and 4817, that added together give a square (47524 = 218²).

The spelling of 427074817 in words is "four hundred twenty-seven million, seventy-four thousand, eight hundred seventeen".