427424786 has 4 divisors (see below), whose sum is σ = 641137182. Its totient is φ = 213712392.

The previous prime is 427424783. The next prime is 427424797. The reversal of 427424786 is 687424724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 423742225 + 3682561 = 20585^2 + 1919^2 .

It is not an unprimeable number, because it can be changed into a prime (427424783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106856195 + ... + 106856198.

Almost surely, 2^427424786 is an apocalyptic number.

427424786 is a deficient number, since it is larger than the sum of its proper divisors (213712396).

427424786 is a wasteful number, since it uses less digits than its factorization.

427424786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213712395.

The product of its digits is 602112, while the sum is 44.

The square root of 427424786 is about 20674.2541824367. The cubic root of 427424786 is about 753.2744452798.

The spelling of 427424786 in words is "four hundred twenty-seven million, four hundred twenty-four thousand, seven hundred eighty-six".