28797134 has 4 divisors (see below), whose sum is σ = 43195704. Its totient is φ = 14398566.

The previous prime is 28797101. The next prime is 28797149. The reversal of 28797134 is 43179782.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×28797134² = 1658549853227912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28797091 and 28797100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7199282 + ... + 7199285.

It is an arithmetic number, because the mean of its divisors is an integer number (10798926).

Almost surely, 2^28797134 is an apocalyptic number.

28797134 is a deficient number, since it is larger than the sum of its proper divisors (14398570).

28797134 is a wasteful number, since it uses less digits than its factorization.

28797134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398569.

The product of its digits is 84672, while the sum is 41.

The square root of 28797134 is about 5366.2961155717. The cubic root of 28797134 is about 306.5136048292.

The spelling of 28797134 in words is "twenty-eight million, seven hundred ninety-seven thousand, one hundred thirty-four".