28246901 has 8 divisors (see below), whose sum is σ = 29891520. Its totient is φ = 26618112.

The previous prime is 28246891. The next prime is 28246913. The reversal of 28246901 is 10964282.

28246901 = 54² + 55² + ... + 439².

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28246901 is a prime.

It is a super-2 number, since 2×28246901² = 1595774832207602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28246931) 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, 185 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (3736440).

Almost surely, 2^28246901 is an apocalyptic number.

It is an amenable number.

28246901 is a deficient number, since it is larger than the sum of its proper divisors (1644619).

28246901 is a wasteful number, since it uses less digits than its factorization.

28246901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 28246901 is about 5314.7813689746. The cubic root of 28246901 is about 304.5488303858.

The spelling of 28246901 in words is "twenty-eight million, two hundred forty-six thousand, nine hundred one".