730881739 has 16 divisors (see below), whose sum is σ = 848793600. Its totient is φ = 616381920.

The previous prime is 730881719. The next prime is 730881769. The reversal of 730881739 is 937188037.

It is a happy number.

It is not a de Polignac number, because 730881739 - 2²³ = 722493131 is a prime.

It is a super-3 number, since 3×730881739³ (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 (730881719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303462 + ... + 305860.

It is an arithmetic number, because the mean of its divisors is an integer number (53049600).

Almost surely, 2^730881739 is an apocalyptic number.

730881739 is a deficient number, since it is larger than the sum of its proper divisors (117911861).

730881739 is a wasteful number, since it uses less digits than its factorization.

730881739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 730881739 is about 27034.8245601853. The cubic root of 730881739 is about 900.7737128525.

The spelling of 730881739 in words is "seven hundred thirty million, eight hundred eighty-one thousand, seven hundred thirty-nine".