28925451 has 8 divisors (see below), whose sum is σ = 42852560. Its totient is φ = 19283616.

The previous prime is 28925443. The next prime is 28925461. The reversal of 28925451 is 15452982.

28925451 is a `hidden beast` number, since 28 + 92 + 545 + 1 = 666.

It is not a de Polignac number, because 28925451 - 2³ = 28925443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28925461) 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, 535630 + ... + 535683.

It is an arithmetic number, because the mean of its divisors is an integer number (5356570).

Almost surely, 2^28925451 is an apocalyptic number.

28925451 is a deficient number, since it is larger than the sum of its proper divisors (13927109).

28925451 is a wasteful number, since it uses less digits than its factorization.

28925451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071322 (or 1071316 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 28925451 is about 5378.2386521983. The cubic root of 28925451 is about 306.9681944224.

The spelling of 28925451 in words is "twenty-eight million, nine hundred twenty-five thousand, four hundred fifty-one".