28673507 has 2 divisors, whose sum is σ = 28673508. Its totient is φ = 28673506.

The previous prime is 28673503. The next prime is 28673549. The reversal of 28673507 is 70537682.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28673507 - 2² = 28673503 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28673501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14336753 + 14336754.

It is an arithmetic number, because the mean of its divisors is an integer number (14336754).

Almost surely, 2^28673507 is an apocalyptic number.

28673507 is a deficient number, since it is larger than the sum of its proper divisors (1).

28673507 is an equidigital number, since it uses as much as digits as its factorization.

28673507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 28673507 is about 5354.7648874624. The cubic root of 28673507 is about 306.0743514772.

The spelling of 28673507 in words is "twenty-eight million, six hundred seventy-three thousand, five hundred seven".