68802137 has 4 divisors (see below), whose sum is σ = 69224400. Its totient is φ = 68379876.

The previous prime is 68802133. The next prime is 68802143. The reversal of 68802137 is 73120886.

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 not a de Polignac number, because 68802137 - 2² = 68802133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68802097 and 68802106.

It is not an unprimeable number, because it can be changed into a prime (68802133) 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, 210887 + ... + 211212.

It is an arithmetic number, because the mean of its divisors is an integer number (17306100).

Almost surely, 2^68802137 is an apocalyptic number.

It is an amenable number.

68802137 is a deficient number, since it is larger than the sum of its proper divisors (422263).

68802137 is a wasteful number, since it uses less digits than its factorization.

68802137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422262.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 68802137 is about 8294.7053594447. The cubic root of 68802137 is about 409.7641653837.

The spelling of 68802137 in words is "sixty-eight million, eight hundred two thousand, one hundred thirty-seven".