381535607 has 8 divisors (see below), whose sum is σ = 404670816. Its totient is φ = 358477312.

The previous prime is 381535597. The next prime is 381535633. The reversal of 381535607 is 706535183.

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 381535607 - 2⁸ = 381535351 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 (381535657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 29004.

It is an arithmetic number, because the mean of its divisors is an integer number (50583852).

Almost surely, 2^381535607 is an apocalyptic number.

381535607 is a deficient number, since it is larger than the sum of its proper divisors (23135209).

381535607 is a wasteful number, since it uses less digits than its factorization.

381535607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38457.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 381535607 is about 19532.9364663893. The cubic root of 381535607 is about 725.2900033635.

The spelling of 381535607 in words is "three hundred eighty-one million, five hundred thirty-five thousand, six hundred seven".