387220423 has 8 divisors (see below), whose sum is σ = 389904768. Its totient is φ = 384545784.

The previous prime is 387220343. The next prime is 387220487. The reversal of 387220423 is 324022783.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387220423 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 (387020423) 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, 89140 + ... + 93382.

It is an arithmetic number, because the mean of its divisors is an integer number (48738096).

Almost surely, 2^387220423 is an apocalyptic number.

387220423 is a deficient number, since it is larger than the sum of its proper divisors (2684345).

387220423 is a wasteful number, since it uses less digits than its factorization.

387220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 387220423 is about 19677.9171407952. The cubic root of 387220423 is about 728.8744919014.

The spelling of 387220423 in words is "three hundred eighty-seven million, two hundred twenty thousand, four hundred twenty-three".