103287621 has 8 divisors (see below), whose sum is σ = 137789824. Its totient is φ = 68821920.

The previous prime is 103287601. The next prime is 103287649. The reversal of 103287621 is 126782301.

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

It is not a de Polignac number, because 103287621 - 2⁷ = 103287493 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 (103287601) 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, 1645 + ... + 14466.

It is an arithmetic number, because the mean of its divisors is an integer number (17223728).

Almost surely, 2^103287621 is an apocalyptic number.

It is an amenable number.

103287621 is a deficient number, since it is larger than the sum of its proper divisors (34502203).

103287621 is a wasteful number, since it uses less digits than its factorization.

103287621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18251.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 103287621 is about 10163.0517562394. The cubic root of 103287621 is about 469.1907320059.

The spelling of 103287621 in words is "one hundred three million, two hundred eighty-seven thousand, six hundred twenty-one".