68477503 has 4 divisors (see below), whose sum is σ = 70147728. Its totient is φ = 66807280.

The previous prime is 68477483. The next prime is 68477527. The reversal of 68477503 is 30577486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30577486 = 2 ⋅15288743.

It is a cyclic number.

It is not a de Polignac number, because 68477503 - 2¹⁷ = 68346431 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 (68477203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835051 + ... + 835132.

It is an arithmetic number, because the mean of its divisors is an integer number (17536932).

Almost surely, 2^68477503 is an apocalyptic number.

68477503 is a deficient number, since it is larger than the sum of its proper divisors (1670225).

68477503 is a wasteful number, since it uses less digits than its factorization.

68477503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670224.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 68477503 is about 8275.1134735422. The cubic root of 68477503 is about 409.1186759948.

It can be divided in two parts, 684 and 77503, that added together give a palindrome (78187).

The spelling of 68477503 in words is "sixty-eight million, four hundred seventy-seven thousand, five hundred three".