427005386 has 4 divisors (see below), whose sum is σ = 640508082. Its totient is φ = 213502692.

The previous prime is 427005331. The next prime is 427005401. The reversal of 427005386 is 683500724.

It is a happy number.

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., 404774161 + 22231225 = 20119^2 + 4715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106751345 + ... + 106751348.

Almost surely, 2^427005386 is an apocalyptic number.

427005386 is a deficient number, since it is larger than the sum of its proper divisors (213502696).

427005386 is a wasteful number, since it uses less digits than its factorization.

427005386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213502695.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 427005386 is about 20664.1086427651. The cubic root of 427005386 is about 753.0279873456.

The spelling of 427005386 in words is "four hundred twenty-seven million, five thousand, three hundred eighty-six".