103620689 has 2 divisors, whose sum is σ = 103620690. Its totient is φ = 103620688.

The previous prime is 103620641. The next prime is 103620691. The reversal of 103620689 is 986026301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98168464 + 5452225 = 9908^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 103620689 - 2²⁴ = 86843473 is a prime.

It is a super-3 number, since 3×103620689³ (a number of 25 digits) contains 333 as substring.

Together with 103620691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103620089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51810344 + 51810345.

It is an arithmetic number, because the mean of its divisors is an integer number (51810345).

Almost surely, 2^103620689 is an apocalyptic number.

It is an amenable number.

103620689 is a deficient number, since it is larger than the sum of its proper divisors (1).

103620689 is an equidigital number, since it uses as much as digits as its factorization.

103620689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 103620689 is about 10179.4247872854. The cubic root of 103620689 is about 469.6945185587.

The spelling of 103620689 in words is "one hundred three million, six hundred twenty thousand, six hundred eighty-nine".