68723503 has 16 divisors (see below), whose sum is σ = 76307616. Its totient is φ = 61608960.

The previous prime is 68723489. The next prime is 68723507. The reversal of 68723503 is 30532786.

It is a cyclic number.

It is not a de Polignac number, because 68723503 - 2⁹ = 68722991 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 (68723507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28825 + ... + 31117.

It is an arithmetic number, because the mean of its divisors is an integer number (4769226).

Almost surely, 2^68723503 is an apocalyptic number.

68723503 is a deficient number, since it is larger than the sum of its proper divisors (7584113).

68723503 is a wasteful number, since it uses less digits than its factorization.

68723503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 68723503 is about 8289.9639926842. The cubic root of 68723503 is about 409.6079993116.

The spelling of 68723503 in words is "sixty-eight million, seven hundred twenty-three thousand, five hundred three".