427662321 has 8 divisors (see below), whose sum is σ = 571683840. Its totient is φ = 284374512.

The previous prime is 427662311. The next prime is 427662337. The reversal of 427662321 is 123266724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427662321 - 2²³ = 419273713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (427662311) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 182065 + ... + 184398.

It is an arithmetic number, because the mean of its divisors is an integer number (71460480).

Almost surely, 2^427662321 is an apocalyptic number.

It is an amenable number.

427662321 is a deficient number, since it is larger than the sum of its proper divisors (144021519).

427662321 is a wasteful number, since it uses less digits than its factorization.

427662321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366855.

The product of its digits is 24192, while the sum is 33.

The square root of 427662321 is about 20679.9980899419. The cubic root of 427662321 is about 753.4139598141.

The spelling of 427662321 in words is "four hundred twenty-seven million, six hundred sixty-two thousand, three hundred twenty-one".