730715381 has 8 divisors (see below), whose sum is σ = 797356224. Its totient is φ = 664109920.

The previous prime is 730715351. The next prime is 730715389. The reversal of 730715381 is 183517037.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730715381 is a prime.

It is a super-2 number, since 2×730715381² = 1067889936059950322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730715389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53456 + ... + 65718.

It is an arithmetic number, because the mean of its divisors is an integer number (99669528).

Almost surely, 2^730715381 is an apocalyptic number.

It is an amenable number.

730715381 is a deficient number, since it is larger than the sum of its proper divisors (66640843).

730715381 is a wasteful number, since it uses less digits than its factorization.

730715381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17691.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 730715381 is about 27031.7476497544. The cubic root of 730715381 is about 900.7053651404.

The spelling of 730715381 in words is "seven hundred thirty million, seven hundred fifteen thousand, three hundred eighty-one".