28901453 has 8 divisors (see below), whose sum is σ = 33358080. Its totient is φ = 24526800.

The previous prime is 28901419. The next prime is 28901497. The reversal of 28901453 is 35410982.

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 28901453 - 2¹² = 28897357 is a prime.

It is a super-2 number, since 2×28901453² = 1670587971022418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901153) 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, 19733 + ... + 21146.

It is an arithmetic number, because the mean of its divisors is an integer number (4169760).

Almost surely, 2^28901453 is an apocalyptic number.

It is an amenable number.

28901453 is a deficient number, since it is larger than the sum of its proper divisors (4456627).

28901453 is a wasteful number, since it uses less digits than its factorization.

28901453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40987.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28901453 is about 5376.0071614536. The cubic root of 28901453 is about 306.8832788820.

The spelling of 28901453 in words is "twenty-eight million, nine hundred one thousand, four hundred fifty-three".