28396461 has 8 divisors (see below), whose sum is σ = 37956160. Its totient is φ = 18883872.

The previous prime is 28396451. The next prime is 28396463. The reversal of 28396461 is 16469382.

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

It is not a de Polignac number, because 28396461 - 2⁹ = 28395949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28396463) 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, 10345 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (4744520).

Almost surely, 2^28396461 is an apocalyptic number.

It is an amenable number.

28396461 is a deficient number, since it is larger than the sum of its proper divisors (9559699).

28396461 is a wasteful number, since it uses less digits than its factorization.

28396461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23555.

The product of its digits is 62208, while the sum is 39.

The square root of 28396461 is about 5328.8329866867. The cubic root of 28396461 is about 305.0853868250.

The spelling of 28396461 in words is "twenty-eight million, three hundred ninety-six thousand, four hundred sixty-one".