729731541 has 32 divisors (see below), whose sum is σ = 1238888448. Its totient is φ = 371010240.

The previous prime is 729731533. The next prime is 729731549. The reversal of 729731541 is 145137927.

It is an interprime number because it is at equal distance from previous prime (729731533) and next prime (729731549).

It is not a de Polignac number, because 729731541 - 2³ = 729731533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 729731541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729731549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22750 + ... + 44463.

It is an arithmetic number, because the mean of its divisors is an integer number (38715264).

Almost surely, 2^729731541 is an apocalyptic number.

It is an amenable number.

729731541 is a deficient number, since it is larger than the sum of its proper divisors (509156907).

729731541 is a wasteful number, since it uses less digits than its factorization.

729731541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67281.

The product of its digits is 52920, while the sum is 39.

The square root of 729731541 is about 27013.5436586909. The cubic root of 729731541 is about 900.3009450368.

The spelling of 729731541 in words is "seven hundred twenty-nine million, seven hundred thirty-one thousand, five hundred forty-one".