28462621 has 8 divisors (see below), whose sum is σ = 31168800. Its totient is φ = 25776240.

The previous prime is 28462591. The next prime is 28462631. The reversal of 28462621 is 12626482.

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 28462621 - 2¹⁵ = 28429853 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 (28462631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851 + ... + 7768.

It is an arithmetic number, because the mean of its divisors is an integer number (3896100).

Almost surely, 2^28462621 is an apocalyptic number.

It is an amenable number.

28462621 is a deficient number, since it is larger than the sum of its proper divisors (2706179).

28462621 is a wasteful number, since it uses less digits than its factorization.

28462621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899.

The product of its digits is 9216, while the sum is 31.

The square root of 28462621 is about 5335.0371132730. The cubic root of 28462621 is about 305.3221392587.

The spelling of 28462621 in words is "twenty-eight million, four hundred sixty-two thousand, six hundred twenty-one".