103247406 has 64 divisors (see below), whose sum is σ = 244108800. Its totient is φ = 32254848.

The previous prime is 103247399. The next prime is 103247407. The reversal of 103247406 is 604742301.

103247406 is a `hidden beast` number, since 10 + 3 + 247 + 406 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 103247406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103247407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105190 + ... + 106166.

It is an arithmetic number, because the mean of its divisors is an integer number (3814200).

Almost surely, 2^103247406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103247406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122054400).

103247406 is an abundant number, since it is smaller than the sum of its proper divisors (140861394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103247406 is a wasteful number, since it uses less digits than its factorization.

103247406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 103247406 is about 10161.0730732536. The cubic root of 103247406 is about 469.1298310175.

Adding to 103247406 its reverse (604742301), we get a palindrome (707989707).

The spelling of 103247406 in words is "one hundred three million, two hundred forty-seven thousand, four hundred six".