28628965 has 8 divisors (see below), whose sum is σ = 35463168. Its totient is φ = 22164240.

The previous prime is 28628923. The next prime is 28628981. The reversal of 28628965 is 56982682.

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

It is not a de Polignac number, because 28628965 - 2⁷ = 28628837 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, 92197 + ... + 92506.

It is an arithmetic number, because the mean of its divisors is an integer number (4432896).

Almost surely, 2^28628965 is an apocalyptic number.

It is an amenable number.

28628965 is a deficient number, since it is larger than the sum of its proper divisors (6834203).

28628965 is a wasteful number, since it uses less digits than its factorization.

28628965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184739.

The product of its digits is 414720, while the sum is 46.

The square root of 28628965 is about 5350.6041714932. The cubic root of 28628965 is about 305.9157819981.

The spelling of 28628965 in words is "twenty-eight million, six hundred twenty-eight thousand, nine hundred sixty-five".