730772281 has 8 divisors (see below), whose sum is σ = 769553280. Its totient is φ = 692023248.

The previous prime is 730772279. The next prime is 730772291. The reversal of 730772281 is 182277037.

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

It is a cyclic number.

It is not a de Polignac number, because 730772281 - 2¹ = 730772279 is a prime.

It is a super-2 number, since 2×730772281² = 1068056253355885922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 730772281.

It is not an unprimeable number, because it can be changed into a prime (730772291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49680 + ... + 62686.

It is an arithmetic number, because the mean of its divisors is an integer number (96194160).

Almost surely, 2^730772281 is an apocalyptic number.

It is an amenable number.

730772281 is a deficient number, since it is larger than the sum of its proper divisors (38780999).

730772281 is a wasteful number, since it uses less digits than its factorization.

730772281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15983.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 730772281 is about 27032.8000954396. The cubic root of 730772281 is about 900.7287435110.

The spelling of 730772281 in words is "seven hundred thirty million, seven hundred seventy-two thousand, two hundred eighty-one".