28980495 has 48 divisors (see below), whose sum is σ = 54486432. Its totient is φ = 14192640.

The previous prime is 28980463. The next prime is 28980517. The reversal of 28980495 is 59408982.

28980495 is a `hidden beast` number, since 2 + 89 + 80 + 495 = 666.

It is not a de Polignac number, because 28980495 - 2⁵ = 28980463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28980495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32455 + ... + 33335.

It is an arithmetic number, because the mean of its divisors is an integer number (1135134).

It is the magic constant of a 387 × 387 magic square.

Almost surely, 2^28980495 is an apocalyptic number.

28980495 is a deficient number, since it is larger than the sum of its proper divisors (25505937).

28980495 is a wasteful number, since it uses less digits than its factorization.

28980495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 28980495 is about 5383.3535087341. The cubic root of 28980495 is about 307.1627871896.

The spelling of 28980495 in words is "twenty-eight million, nine hundred eighty thousand, four hundred ninety-five".