427237994 has 4 divisors (see below), whose sum is σ = 640856994. Its totient is φ = 213618996.

The previous prime is 427237991. The next prime is 427237997. The reversal of 427237994 is 499732724.

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

It is an interprime number because it is at equal distance from previous prime (427237991) and next prime (427237997).

It can be written as a sum of positive squares in only one way, i.e., 404532769 + 22705225 = 20113^2 + 4765^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (427237991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106809497 + ... + 106809500.

Almost surely, 2^427237994 is an apocalyptic number.

427237994 is a deficient number, since it is larger than the sum of its proper divisors (213619000).

427237994 is a wasteful number, since it uses less digits than its factorization.

427237994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213618999.

The product of its digits is 762048, while the sum is 47.

The square root of 427237994 is about 20669.7361860281. The cubic root of 427237994 is about 753.1646979849.

The spelling of 427237994 in words is "four hundred twenty-seven million, two hundred thirty-seven thousand, nine hundred ninety-four".