104620309 has 4 divisors (see below), whose sum is σ = 105204960. Its totient is φ = 104035660.

The previous prime is 104620303. The next prime is 104620343. The reversal of 104620309 is 903026401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 903026401 = 683 ⋅1322147.

It is a cyclic number.

It is not a de Polignac number, because 104620309 - 2¹⁵ = 104587541 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 (104620303) 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, 292057 + ... + 292414.

It is an arithmetic number, because the mean of its divisors is an integer number (26301240).

Almost surely, 2^104620309 is an apocalyptic number.

It is an amenable number.

104620309 is a deficient number, since it is larger than the sum of its proper divisors (584651).

104620309 is an equidigital number, since it uses as much as digits as its factorization.

104620309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584650.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 104620309 is about 10228.4069629635. The cubic root of 104620309 is about 471.2000553560.

The spelling of 104620309 in words is "one hundred four million, six hundred twenty thousand, three hundred nine".