68988837 has 8 divisors (see below), whose sum is σ = 92040480. Its totient is φ = 45964880.

The previous prime is 68988827. The next prime is 68988847. The reversal of 68988837 is 73888986.

It is an interprime number because it is at equal distance from previous prime (68988827) and next prime (68988847).

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 68988837 - 2¹¹ = 68986789 is a prime.

It is a super-2 number, since 2×68988837² = 9518919261225138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68988817) 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, 162 + ... + 11747.

It is an arithmetic number, because the mean of its divisors is an integer number (11505060).

Almost surely, 2^68988837 is an apocalyptic number.

It is an amenable number.

68988837 is a deficient number, since it is larger than the sum of its proper divisors (23051643).

68988837 is a wasteful number, since it uses less digits than its factorization.

68988837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13843.

The product of its digits is 4644864, while the sum is 57.

The square root of 68988837 is about 8305.9519021001. The cubic root of 68988837 is about 410.1344730428.

The spelling of 68988837 in words is "sixty-eight million, nine hundred eighty-eight thousand, eight hundred thirty-seven".