28477403 has 2 divisors, whose sum is σ = 28477404. Its totient is φ = 28477402.

The previous prime is 28477349. The next prime is 28477417. The reversal of 28477403 is 30477482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28477403 - 2²⁰ = 27428827 is a prime.

It is not a weakly prime, because it can be changed into another prime (28477303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14238701 + 14238702.

It is an arithmetic number, because the mean of its divisors is an integer number (14238702).

Almost surely, 2^28477403 is an apocalyptic number.

28477403 is a deficient number, since it is larger than the sum of its proper divisors (1).

28477403 is an equidigital number, since it uses as much as digits as its factorization.

28477403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 28477403 is about 5336.4223033789. The cubic root of 28477403 is about 305.3749862397.

The spelling of 28477403 in words is "twenty-eight million, four hundred seventy-seven thousand, four hundred three".