68464537 has 4 divisors (see below), whose sum is σ = 71441280. Its totient is φ = 65487796.

The previous prime is 68464511. The next prime is 68464573. The reversal of 68464537 is 73546486.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68464537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68464493 and 68464502.

It is not an unprimeable number, because it can be changed into a prime (68464597) 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, 1488337 + ... + 1488382.

It is an arithmetic number, because the mean of its divisors is an integer number (17860320).

Almost surely, 2^68464537 is an apocalyptic number.

It is an amenable number.

68464537 is a deficient number, since it is larger than the sum of its proper divisors (2976743).

68464537 is a wasteful number, since it uses less digits than its factorization.

68464537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976742.

The product of its digits is 483840, while the sum is 43.

The square root of 68464537 is about 8274.3300030879. The cubic root of 68464537 is about 409.0928525864.

The spelling of 68464537 in words is "sixty-eight million, four hundred sixty-four thousand, five hundred thirty-seven".