68996737 has 4 divisors (see below), whose sum is σ = 69075760. Its totient is φ = 68917716.

The previous prime is 68996729. The next prime is 68996743. The reversal of 68996737 is 73769986.

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: 73769986 = 2 ⋅36884993.

It is a cyclic number.

It is not a de Polignac number, because 68996737 - 2³ = 68996729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68996747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38187 + ... + 39952.

It is an arithmetic number, because the mean of its divisors is an integer number (17268940).

Almost surely, 2^68996737 is an apocalyptic number.

It is an amenable number.

68996737 is a deficient number, since it is larger than the sum of its proper divisors (79023).

68996737 is an equidigital number, since it uses as much as digits as its factorization.

68996737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79022.

The product of its digits is 3429216, while the sum is 55.

The square root of 68996737 is about 8306.4274510767. The cubic root of 68996737 is about 410.1501274530.

The spelling of 68996737 in words is "sixty-eight million, nine hundred ninety-six thousand, seven hundred thirty-seven".