730991379 has 4 divisors (see below), whose sum is σ = 974655176. Its totient is φ = 487327584.

The previous prime is 730991353. The next prime is 730991411. The reversal of 730991379 is 973199037.

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

It is not a de Polignac number, because 730991379 - 2⁷ = 730991251 is a prime.

It is a super-3 number, since 3×730991379³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730991479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121831894 + ... + 121831899.

It is an arithmetic number, because the mean of its divisors is an integer number (243663794).

Almost surely, 2^730991379 is an apocalyptic number.

730991379 is a deficient number, since it is larger than the sum of its proper divisors (243663797).

730991379 is a wasteful number, since it uses less digits than its factorization.

730991379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243663796.

The product of its (nonzero) digits is 321489, while the sum is 48.

The square root of 730991379 is about 27036.8522391198. The cubic root of 730991379 is about 900.8187524654.

The spelling of 730991379 in words is "seven hundred thirty million, nine hundred ninety-one thousand, three hundred seventy-nine".