427756634 has 4 divisors (see below), whose sum is σ = 641634954. Its totient is φ = 213878316.

The previous prime is 427756627. The next prime is 427756643. The reversal of 427756634 is 436657724.

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., 395890609 + 31866025 = 19897^2 + 5645^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106939157 + ... + 106939160.

Almost surely, 2^427756634 is an apocalyptic number.

427756634 is a deficient number, since it is larger than the sum of its proper divisors (213878320).

427756634 is a wasteful number, since it uses less digits than its factorization.

427756634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213878319.

The product of its digits is 846720, while the sum is 44.

The square root of 427756634 is about 20682.2782594181. The cubic root of 427756634 is about 753.4693395725.

The spelling of 427756634 in words is "four hundred twenty-seven million, seven hundred fifty-six thousand, six hundred thirty-four".