68023977 has 32 divisors (see below), whose sum is σ = 106106880. Its totient is φ = 37964160.

The previous prime is 68023973. The next prime is 68023999. The reversal of 68023977 is 77932086.

It is not a de Polignac number, because 68023977 - 2² = 68023973 is a prime.

It is a super-2 number, since 2×68023977² = 9254522893793058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68023973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217173 + ... + 217485.

It is an arithmetic number, because the mean of its divisors is an integer number (3315840).

Almost surely, 2^68023977 is an apocalyptic number.

It is an amenable number.

68023977 is a deficient number, since it is larger than the sum of its proper divisors (38082903).

68023977 is a wasteful number, since it uses less digits than its factorization.

68023977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 68023977 is about 8247.6649422731. The cubic root of 68023977 is about 408.2134780074.

The spelling of 68023977 in words is "sixty-eight million, twenty-three thousand, nine hundred seventy-seven".