427720101 has 8 divisors (see below), whose sum is σ = 589958880. Its totient is φ = 275314032.

The previous prime is 427720099. The next prime is 427720103. The reversal of 427720101 is 101027724.

It is an interprime number because it is at equal distance from previous prime (427720099) and next prime (427720103).

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

It is not a de Polignac number, because 427720101 - 2¹ = 427720099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427720103) 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, 2458075 + ... + 2458248.

It is an arithmetic number, because the mean of its divisors is an integer number (73744860).

Almost surely, 2^427720101 is an apocalyptic number.

It is an amenable number.

427720101 is a deficient number, since it is larger than the sum of its proper divisors (162238779).

427720101 is a wasteful number, since it uses less digits than its factorization.

427720101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916355.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 427720101 is about 20681.3950448223. The cubic root of 427720101 is about 753.4478886844.

Adding to 427720101 its reverse (101027724), we get a palindrome (528747825).

The spelling of 427720101 in words is "four hundred twenty-seven million, seven hundred twenty thousand, one hundred one".