68634992 has 40 divisors (see below), whose sum is σ = 144514560. Its totient is φ = 31458240.

The previous prime is 68634989. The next prime is 68635027. The reversal of 68634992 is 29943686.

It is a super-3 number, since 3×68634992³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5783 + ... + 13065.

It is an arithmetic number, because the mean of its divisors is an integer number (3612864).

Almost surely, 2^68634992 is an apocalyptic number.

68634992 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68634992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72257280).

68634992 is an abundant number, since it is smaller than the sum of its proper divisors (75879568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68634992 is a wasteful number, since it uses less digits than its factorization.

68634992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341 (or 7335 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 68634992 is about 8284.6238297221. The cubic root of 68634992 is about 409.4320750755.

The spelling of 68634992 in words is "sixty-eight million, six hundred thirty-four thousand, nine hundred ninety-two".