728269651 has 2 divisors, whose sum is σ = 728269652. Its totient is φ = 728269650.

The previous prime is 728269621. The next prime is 728269673. The reversal of 728269651 is 156962827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 728269651 - 2⁷ = 728269523 is a prime.

It is not a weakly prime, because it can be changed into another prime (728269621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364134825 + 364134826.

It is an arithmetic number, because the mean of its divisors is an integer number (364134826).

Almost surely, 2^728269651 is an apocalyptic number.

728269651 is a deficient number, since it is larger than the sum of its proper divisors (1).

728269651 is an equidigital number, since it uses as much as digits as its factorization.

728269651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 728269651 is about 26986.4716293183. The cubic root of 728269651 is about 899.6993444296.

The spelling of 728269651 in words is "seven hundred twenty-eight million, two hundred sixty-nine thousand, six hundred fifty-one".