728457295 has 8 divisors (see below), whose sum is σ = 897774624. Its totient is φ = 567015264.

The previous prime is 728457287. The next prime is 728457337. The reversal of 728457295 is 592754827.

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 728457295 - 2³ = 728457287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968619 + ... + 1968988.

It is an arithmetic number, because the mean of its divisors is an integer number (112221828).

Almost surely, 2^728457295 is an apocalyptic number.

728457295 is a deficient number, since it is larger than the sum of its proper divisors (169317329).

728457295 is a wasteful number, since it uses less digits than its factorization.

728457295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937649.

The product of its digits is 1411200, while the sum is 49.

The square root of 728457295 is about 26989.9480362597. The cubic root of 728457295 is about 899.7766091653.

The spelling of 728457295 in words is "seven hundred twenty-eight million, four hundred fifty-seven thousand, two hundred ninety-five".