102873621 has 4 divisors (see below), whose sum is σ = 137164832. Its totient is φ = 68582412.

The previous prime is 102873607. The next prime is 102873629. The reversal of 102873621 is 126378201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 102873621 - 2⁹ = 102873109 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 (102873629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17145601 + ... + 17145606.

It is an arithmetic number, because the mean of its divisors is an integer number (34291208).

Almost surely, 2^102873621 is an apocalyptic number.

It is an amenable number.

102873621 is a deficient number, since it is larger than the sum of its proper divisors (34291211).

102873621 is an equidigital number, since it uses as much as digits as its factorization.

102873621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34291210.

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

The square root of 102873621 is about 10142.6634076065. The cubic root of 102873621 is about 468.5630186153.

The spelling of 102873621 in words is "one hundred two million, eight hundred seventy-three thousand, six hundred twenty-one".