427679998 has 4 divisors (see below), whose sum is σ = 641520000. Its totient is φ = 213839998.

The previous prime is 427679981. The next prime is 427680017. The reversal of 427679998 is 899976724.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106919998 + ... + 106920001.

It is an arithmetic number, because the mean of its divisors is an integer number (160380000).

Almost surely, 2^427679998 is an apocalyptic number.

427679998 is a deficient number, since it is larger than the sum of its proper divisors (213840002).

427679998 is a wasteful number, since it uses less digits than its factorization.

427679998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213840001.

The product of its digits is 13716864, while the sum is 61.

The square root of 427679998 is about 20680.4254791820. The cubic root of 427679998 is about 753.4243402119.

The spelling of 427679998 in words is "four hundred twenty-seven million, six hundred seventy-nine thousand, nine hundred ninety-eight".