715386381 has 4 divisors (see below), whose sum is σ = 953848512. Its totient is φ = 476924252.

The previous prime is 715386359. The next prime is 715386449. The reversal of 715386381 is 183683517.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 183683517 = 3 ⋅61227839.

It is a cyclic number.

It is not a de Polignac number, because 715386381 - 2⁷ = 715386253 is a prime.

It is a super-2 number, since 2×715386381² = 1023555348240554322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715386341) 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, 119231061 + ... + 119231066.

It is an arithmetic number, because the mean of its divisors is an integer number (238462128).

Almost surely, 2^715386381 is an apocalyptic number.

It is an amenable number.

715386381 is a deficient number, since it is larger than the sum of its proper divisors (238462131).

715386381 is a wasteful number, since it uses less digits than its factorization.

715386381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238462130.

The product of its digits is 120960, while the sum is 42.

The square root of 715386381 is about 26746.7078534911. The cubic root of 715386381 is about 894.3624480637.

The spelling of 715386381 in words is "seven hundred fifteen million, three hundred eighty-six thousand, three hundred eighty-one".