427159988 has 6 divisors (see below), whose sum is σ = 747529986. Its totient is φ = 213579992.

The previous prime is 427159951. The next prime is 427160021. The reversal of 427159988 is 889951724.

It can be written as a sum of positive squares in only one way, i.e., 414041104 + 13118884 = 20348^2 + 3622^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53394995 + ... + 53395002.

It is an arithmetic number, because the mean of its divisors is an integer number (124588331).

Almost surely, 2^427159988 is an apocalyptic number.

It is an amenable number.

427159988 is a deficient number, since it is larger than the sum of its proper divisors (320369998).

427159988 is a wasteful number, since it uses less digits than its factorization.

427159988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106790001 (or 106789999 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 53.

The square root of 427159988 is about 20667.8491382146. The cubic root of 427159988 is about 753.1188570701.

The spelling of 427159988 in words is "four hundred twenty-seven million, one hundred fifty-nine thousand, nine hundred eighty-eight".