28603761 has 8 divisors (see below), whose sum is σ = 38163264. Its totient is φ = 19056720.

The previous prime is 28603747. The next prime is 28603763. The reversal of 28603761 is 16730682.

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

It is not a de Polignac number, because 28603761 - 2⁷ = 28603633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28603763) 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, 6375 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (4770408).

Almost surely, 2^28603761 is an apocalyptic number.

It is an amenable number.

28603761 is a deficient number, since it is larger than the sum of its proper divisors (9559503).

28603761 is a wasteful number, since it uses less digits than its factorization.

28603761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28603761 is about 5348.2484048518. The cubic root of 28603761 is about 305.8259829070.

The spelling of 28603761 in words is "twenty-eight million, six hundred three thousand, seven hundred sixty-one".