68607988 has 24 divisors (see below), whose sum is σ = 132656832. Its totient is φ = 30881664.

The previous prime is 68607983. The next prime is 68608019. The reversal of 68607988 is 88970686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68607983) 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, 20370 + ... + 23497.

It is an arithmetic number, because the mean of its divisors is an integer number (5527368).

Almost surely, 2^68607988 is an apocalyptic number.

68607988 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68607988 is a deficient number, since it is larger than the sum of its proper divisors (64048844).

68607988 is a wasteful number, since it uses less digits than its factorization.

68607988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43911 (or 43909 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 68607988 is about 8282.9939031729. The cubic root of 68607988 is about 409.3783718853.

The spelling of 68607988 in words is "sixty-eight million, six hundred seven thousand, nine hundred eighty-eight".