387421423 has 8 divisors (see below), whose sum is σ = 405316800. Its totient is φ = 369928320.

The previous prime is 387421417. The next prime is 387421429. The reversal of 387421423 is 324124783.

It is an interprime number because it is at equal distance from previous prime (387421417) and next prime (387421429).

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

It is a cyclic number.

It is not a de Polignac number, because 387421423 - 2²¹ = 385324271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387421429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98598 + ... + 102451.

It is an arithmetic number, because the mean of its divisors is an integer number (50664600).

Almost surely, 2^387421423 is an apocalyptic number.

387421423 is a deficient number, since it is larger than the sum of its proper divisors (17895377).

387421423 is a wasteful number, since it uses less digits than its factorization.

387421423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201137.

The product of its digits is 32256, while the sum is 34.

The square root of 387421423 is about 19683.0237260437. The cubic root of 387421423 is about 729.0005858281. Note that the first 3 decimals are identical.

The spelling of 387421423 in words is "three hundred eighty-seven million, four hundred twenty-one thousand, four hundred twenty-three".