28141497 has 12 divisors (see below), whose sum is σ = 41747940. Its totient is φ = 18253728.

The previous prime is 28141493. The next prime is 28141499. The reversal of 28141497 is 79414182.

28141497 is a `hidden beast` number, since 28 + 141 + 497 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22553001 + 5588496 = 4749^2 + 2364^2 .

It is not a de Polignac number, because 28141497 - 2² = 28141493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28141493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41922 + ... + 42587.

It is an arithmetic number, because the mean of its divisors is an integer number (3478995).

Almost surely, 2^28141497 is an apocalyptic number.

It is an amenable number.

28141497 is a deficient number, since it is larger than the sum of its proper divisors (13606443).

28141497 is a wasteful number, since it uses less digits than its factorization.

28141497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84552 (or 84549 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 28141497 is about 5304.8559829650. The cubic root of 28141497 is about 304.1695477636.

The spelling of 28141497 in words is "twenty-eight million, one hundred forty-one thousand, four hundred ninety-seven".