728877 has 8 divisors (see below), whose sum is σ = 978880. Its totient is φ = 482400.

The previous prime is 728873. The next prime is 728881. The reversal of 728877 is 778827.

It is an interprime number because it is at equal distance from previous prime (728873) and next prime (728881).

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

It is not a de Polignac number, because 728877 - 2² = 728873 is a prime.

It is a super-2 number, since 2×728877² = 1062523362258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352 + ... + 1257.

It is an arithmetic number, because the mean of its divisors is an integer number (122360).

2⁷²⁸⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

728877 is a deficient number, since it is larger than the sum of its proper divisors (250003).

728877 is a wasteful number, since it uses less digits than its factorization.

728877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763.

The product of its digits is 43904, while the sum is 39.

The square root of 728877 is about 853.7429355491. The cubic root of 728877 is about 89.9949379869.

The spelling of 728877 in words is "seven hundred twenty-eight thousand, eight hundred seventy-seven".