73868507 has 4 divisors (see below), whose sum is σ = 74630136. Its totient is φ = 73106880.

The previous prime is 73868497. The next prime is 73868513. The reversal of 73868507 is 70586837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70586837 = 5261 ⋅13417.

It is a cyclic number.

It is not a de Polignac number, because 73868507 - 2⁴ = 73868491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73868807) 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, 380669 + ... + 380862.

It is an arithmetic number, because the mean of its divisors is an integer number (18657534).

Almost surely, 2^73868507 is an apocalyptic number.

73868507 is a deficient number, since it is larger than the sum of its proper divisors (761629).

73868507 is an equidigital number, since it uses as much as digits as its factorization.

73868507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761628.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 73868507 is about 8594.6789934238. The cubic root of 73868507 is about 419.5848259372.

The spelling of 73868507 in words is "seventy-three million, eight hundred sixty-eight thousand, five hundred seven".