387430869 has 8 divisors (see below), whose sum is σ = 590370880. Its totient is φ = 221389056.

The previous prime is 387430861. The next prime is 387430873. The reversal of 387430869 is 968034783.

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

It is not a de Polignac number, because 387430869 - 2³ = 387430861 is a prime.

It is a super-2 number, since 2×387430869² = 300205356508190322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387430861) 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, 9224524 + ... + 9224565.

It is an arithmetic number, because the mean of its divisors is an integer number (73796360).

Almost surely, 2^387430869 is an apocalyptic number.

It is an amenable number.

387430869 is a deficient number, since it is larger than the sum of its proper divisors (202940011).

387430869 is a wasteful number, since it uses less digits than its factorization.

387430869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18449099.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 387430869 is about 19683.2636775510. The cubic root of 387430869 is about 729.0065105423.

It can be divided in two parts, 3874 and 30869, that added together give a palindrome (34743).

The spelling of 387430869 in words is "three hundred eighty-seven million, four hundred thirty thousand, eight hundred sixty-nine".