730626481 has 4 divisors (see below), whose sum is σ = 786828532. Its totient is φ = 674424432.

The previous prime is 730626469. The next prime is 730626497. The reversal of 730626481 is 184626037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184626037 = 23 ⋅8027219.

It can be written as a sum of positive squares in 2 ways, for example, as 351000225 + 379626256 = 18735^2 + 19484^2 .

It is a cyclic number.

It is not a de Polignac number, because 730626481 - 2¹⁵ = 730593713 is a prime.

It is a super-2 number, since 2×730626481² = 1067630109476886722, 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 730626481.

It is not an unprimeable number, because it can be changed into a prime (730626181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28101006 + ... + 28101031.

It is an arithmetic number, because the mean of its divisors is an integer number (196707133).

Almost surely, 2^730626481 is an apocalyptic number.

It is an amenable number.

730626481 is a deficient number, since it is larger than the sum of its proper divisors (56202051).

730626481 is a wasteful number, since it uses less digits than its factorization.

730626481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56202050.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 730626481 is about 27030.1032369468. The cubic root of 730626481 is about 900.6688365747.

The spelling of 730626481 in words is "seven hundred thirty million, six hundred twenty-six thousand, four hundred eighty-one".