38430987 has 8 divisors (see below), whose sum is σ = 58561536. Its totient is φ = 21960552.

The previous prime is 38430983. The next prime is 38431013. The reversal of 38430987 is 78903483.

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

It is not a de Polignac number, because 38430987 - 2² = 38430983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38430983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915003 + ... + 915044.

It is an arithmetic number, because the mean of its divisors is an integer number (7320192).

Almost surely, 2^38430987 is an apocalyptic number.

38430987 is a deficient number, since it is larger than the sum of its proper divisors (20130549).

38430987 is a wasteful number, since it uses less digits than its factorization.

38430987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830057.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 38430987 is about 6199.2731025500. The cubic root of 38430987 is about 337.4637898052.

The spelling of 38430987 in words is "thirty-eight million, four hundred thirty thousand, nine hundred eighty-seven".