103402447 has 2 divisors, whose sum is σ = 103402448. Its totient is φ = 103402446.

The previous prime is 103402441. The next prime is 103402493. The reversal of 103402447 is 744204301.

It is a weak prime.

It is an emirp because it is prime and its reverse (744204301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103402447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103402441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701223 + 51701224.

It is an arithmetic number, because the mean of its divisors is an integer number (51701224).

Almost surely, 2^103402447 is an apocalyptic number.

103402447 is a deficient number, since it is larger than the sum of its proper divisors (1).

103402447 is an equidigital number, since it uses as much as digits as its factorization.

103402447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 103402447 is about 10168.6993760264. The cubic root of 103402447 is about 469.3645358048.

Adding to 103402447 its reverse (744204301), we get a palindrome (847606748).

The spelling of 103402447 in words is "one hundred three million, four hundred two thousand, four hundred forty-seven".