381358699 has 4 divisors (see below), whose sum is σ = 397939536. Its totient is φ = 364777864.

The previous prime is 381358697. The next prime is 381358717. The reversal of 381358699 is 996853183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996853183 = 19 ⋅52465957.

It is a cyclic number.

It is not a de Polignac number, because 381358699 - 2¹ = 381358697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381358693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8290384 + ... + 8290429.

It is an arithmetic number, because the mean of its divisors is an integer number (99484884).

Almost surely, 2^381358699 is an apocalyptic number.

381358699 is a deficient number, since it is larger than the sum of its proper divisors (16580837).

381358699 is a wasteful number, since it uses less digits than its factorization.

381358699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16580836.

The product of its digits is 1399680, while the sum is 52.

The square root of 381358699 is about 19528.4074875551. The cubic root of 381358699 is about 725.1778867503.

The spelling of 381358699 in words is "three hundred eighty-one million, three hundred fifty-eight thousand, six hundred ninety-nine".