28495761 has 32 divisors (see below), whose sum is σ = 44774400. Its totient is φ = 15785280.

The previous prime is 28495759. The next prime is 28495783. The reversal of 28495761 is 16759482.

It is not a de Polignac number, because 28495761 - 2¹ = 28495759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28495721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134946 + ... + 135156.

It is an arithmetic number, because the mean of its divisors is an integer number (1399200).

Almost surely, 2^28495761 is an apocalyptic number.

28495761 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28495761 is a deficient number, since it is larger than the sum of its proper divisors (16278639).

28495761 is a wasteful number, since it uses less digits than its factorization.

28495761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its digits is 120960, while the sum is 42.

The square root of 28495761 is about 5338.1420925262. The cubic root of 28495761 is about 305.4405922897.

The spelling of 28495761 in words is "twenty-eight million, four hundred ninety-five thousand, seven hundred sixty-one".