68678501 has 4 divisors (see below), whose sum is σ = 68699904. Its totient is φ = 68657100.

The previous prime is 68678479. The next prime is 68678503. The reversal of 68678501 is 10587686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10587686 = 2 ⋅5293843.

It is a cyclic number.

It is not a de Polignac number, because 68678501 - 2²⁶ = 1569637 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 (68678503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4805 + ... + 12666.

It is an arithmetic number, because the mean of its divisors is an integer number (17174976).

Almost surely, 2^68678501 is an apocalyptic number.

It is an amenable number.

68678501 is a deficient number, since it is larger than the sum of its proper divisors (21403).

68678501 is a wasteful number, since it uses less digits than its factorization.

68678501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 68678501 is about 8287.2493023922. The cubic root of 68678501 is about 409.5185723405.

The spelling of 68678501 in words is "sixty-eight million, six hundred seventy-eight thousand, five hundred one".