381407627 has 4 divisors (see below), whose sum is σ = 381480360. Its totient is φ = 381334896.

The previous prime is 381407603. The next prime is 381407639. The reversal of 381407627 is 726704183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381407627 is a prime.

It is a super-2 number, since 2×381407627² = 290943555867542258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381407927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27833 + ... + 39210.

It is an arithmetic number, because the mean of its divisors is an integer number (95370090).

Almost surely, 2^381407627 is an apocalyptic number.

381407627 is a deficient number, since it is larger than the sum of its proper divisors (72733).

381407627 is an equidigital number, since it uses as much as digits as its factorization.

381407627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72732.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 381407627 is about 19529.6601864958. The cubic root of 381407627 is about 725.2088986615.

The spelling of 381407627 in words is "three hundred eighty-one million, four hundred seven thousand, six hundred twenty-seven".