28922539 has 8 divisors (see below), whose sum is σ = 29250000. Its totient is φ = 28597152.

The previous prime is 28922521. The next prime is 28922549. The reversal of 28922539 is 93522982.

28922539 = T₅₉ + T₆₀ + ... + T₅₅₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28922539 - 2¹¹ = 28920491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28922519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57712 + ... + 58210.

It is an arithmetic number, because the mean of its divisors is an integer number (3656250).

Almost surely, 2^28922539 is an apocalyptic number.

28922539 is a deficient number, since it is larger than the sum of its proper divisors (327461).

28922539 is a wasteful number, since it uses less digits than its factorization.

28922539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037.

The product of its digits is 77760, while the sum is 40.

The square root of 28922539 is about 5377.9679247835. The cubic root of 28922539 is about 306.9578929826.

The spelling of 28922539 in words is "twenty-eight million, nine hundred twenty-two thousand, five hundred thirty-nine".