427938093 has 64 divisors (see below), whose sum is σ = 739031040. Its totient is φ = 241862400.

The previous prime is 427938079. The next prime is 427938109. The reversal of 427938093 is 390839724.

It is a happy number.

It is not a de Polignac number, because 427938093 - 2⁵ = 427938061 is a prime.

It is a super-2 number, since 2×427938093² = 366262022880953298, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427938053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 661096 + ... + 661742.

It is an arithmetic number, because the mean of its divisors is an integer number (11547360).

Almost surely, 2^427938093 is an apocalyptic number.

It is an amenable number.

427938093 is a deficient number, since it is larger than the sum of its proper divisors (311092947).

427938093 is a wasteful number, since it uses less digits than its factorization.

427938093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 427938093 is about 20686.6646175743. The cubic root of 427938093 is about 753.5758677970.

The spelling of 427938093 in words is "four hundred twenty-seven million, nine hundred thirty-eight thousand, ninety-three".