68337949 has 8 divisors (see below), whose sum is σ = 70792920. Its totient is φ = 65889600.

The previous prime is 68337937. The next prime is 68337961. The reversal of 68337949 is 94973386.

It is an interprime number because it is at equal distance from previous prime (68337937) and next prime (68337961).

It can be written as a sum of positive squares in 4 ways, for example, as 20313049 + 48024900 = 4507^2 + 6930^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68337949 - 2⁵ = 68337917 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 (68337149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29659 + ... + 31879.

It is an arithmetic number, because the mean of its divisors is an integer number (8849115).

Almost surely, 2^68337949 is an apocalyptic number.

It is an amenable number.

68337949 is a deficient number, since it is larger than the sum of its proper divisors (2454971).

68337949 is a wasteful number, since it uses less digits than its factorization.

68337949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311.

The product of its digits is 979776, while the sum is 49.

The square root of 68337949 is about 8266.6770228430. The cubic root of 68337949 is about 408.8405653051.

The spelling of 68337949 in words is "sixty-eight million, three hundred thirty-seven thousand, nine hundred forty-nine".