68503401 has 36 divisors (see below), whose sum is σ = 105219972. Its totient is φ = 44579808.

The previous prime is 68503399. The next prime is 68503403. The reversal of 68503401 is 10430586.

It is an interprime number because it is at equal distance from previous prime (68503399) and next prime (68503403).

It can be written as a sum of positive squares in 2 ways, for example, as 60466176 + 8037225 = 7776^2 + 2835^2 .

It is not a de Polignac number, because 68503401 - 2¹ = 68503399 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (68503403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 347635 + ... + 347831.

It is an arithmetic number, because the mean of its divisors is an integer number (2922777).

Almost surely, 2^68503401 is an apocalyptic number.

It is an amenable number.

68503401 is a deficient number, since it is larger than the sum of its proper divisors (36716571).

68503401 is an frugal number, since it uses more digits than its factorization.

68503401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 68503401 is about 8276.6781379972. The cubic root of 68503401 is about 409.1702453404.

Adding to 68503401 its reverse (10430586), we get a palindrome (78933987).

The spelling of 68503401 in words is "sixty-eight million, five hundred three thousand, four hundred one".