28492761 has 32 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 15785280.

The previous prime is 28492757. The next prime is 28492769. The reversal of 28492761 is 16729482.

It is not a de Polignac number, because 28492761 - 2² = 28492757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28492769) 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, 17400 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 2^28492761 is an apocalyptic number.

It is an amenable number.

28492761 is a deficient number, since it is larger than the sum of its proper divisors (16665639).

28492761 is a wasteful number, since it uses less digits than its factorization.

28492761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its digits is 48384, while the sum is 39.

The square root of 28492761 is about 5337.8610884885. The cubic root of 28492761 is about 305.4298731054.

The spelling of 28492761 in words is "twenty-eight million, four hundred ninety-two thousand, seven hundred sixty-one".