28477413 has 12 divisors (see below), whose sum is σ = 42657888. Its totient is φ = 18984780.

The previous prime is 28477403. The next prime is 28477417. The reversal of 28477413 is 31477482.

It is a happy number.

It is not a de Polignac number, because 28477413 - 2⁶ = 28477349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28477417) 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, 58353 + ... + 58838.

It is an arithmetic number, because the mean of its divisors is an integer number (3554824).

Almost surely, 2^28477413 is an apocalyptic number.

It is an amenable number.

28477413 is a deficient number, since it is larger than the sum of its proper divisors (14180475).

28477413 is an equidigital number, since it uses as much as digits as its factorization.

28477413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117206 (or 117194 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 28477413 is about 5336.4232403362. The cubic root of 28477413 is about 305.3750219844.

The spelling of 28477413 in words is "twenty-eight million, four hundred seventy-seven thousand, four hundred thirteen".