68379149 has 4 divisors (see below), whose sum is σ = 70584960. Its totient is φ = 66173340.

The previous prime is 68379139. The next prime is 68379167. The reversal of 68379149 is 94197386.

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 68379149 - 2⁴ = 68379133 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 (68379139) 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, 1102859 + ... + 1102920.

It is an arithmetic number, because the mean of its divisors is an integer number (17646240).

Almost surely, 2^68379149 is an apocalyptic number.

It is an amenable number.

68379149 is a deficient number, since it is larger than the sum of its proper divisors (2205811).

68379149 is a wasteful number, since it uses less digits than its factorization.

68379149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205810.

The product of its digits is 326592, while the sum is 47.

The square root of 68379149 is about 8269.1685797304. The cubic root of 68379149 is about 408.9227102315.

The spelling of 68379149 in words is "sixty-eight million, three hundred seventy-nine thousand, one hundred forty-nine".