28694079 has 36 divisors (see below), whose sum is σ = 45654336. Its totient is φ = 17305344.

The previous prime is 28694053. The next prime is 28694117. The reversal of 28694079 is 97049682.

It is a happy number.

It is not a de Polignac number, because 28694079 - 2⁸ = 28693823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28684079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128562 + ... + 128784.

It is an arithmetic number, because the mean of its divisors is an integer number (1268176).

Almost surely, 2^28694079 is an apocalyptic number.

28694079 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28694079 is a deficient number, since it is larger than the sum of its proper divisors (16960257).

28694079 is a wasteful number, since it uses less digits than its factorization.

28694079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 28694079 is about 5356.6854490440. The cubic root of 28694079 is about 306.1475323444.

The spelling of 28694079 in words is "twenty-eight million, six hundred ninety-four thousand, seventy-nine".