28415479 has 2 divisors, whose sum is σ = 28415480. Its totient is φ = 28415478.

The previous prime is 28415467. The next prime is 28415489. The reversal of 28415479 is 97451482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28415479 - 2⁷ = 28415351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28415489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14207739 + 14207740.

It is an arithmetic number, because the mean of its divisors is an integer number (14207740).

Almost surely, 2^28415479 is an apocalyptic number.

28415479 is a deficient number, since it is larger than the sum of its proper divisors (1).

28415479 is an equidigital number, since it uses as much as digits as its factorization.

28415479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 28415479 is about 5330.6171312523. The cubic root of 28415479 is about 305.1534800413.

The spelling of 28415479 in words is "twenty-eight million, four hundred fifteen thousand, four hundred seventy-nine".