68995977 has 16 divisors (see below), whose sum is σ = 93155328. Its totient is φ = 45421200.

The previous prime is 68995967. The next prime is 68995999. The reversal of 68995977 is 77959986.

It is not a de Polignac number, because 68995977 - 2¹⁰ = 68994953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68995977.

It is not an unprimeable number, because it can be changed into a prime (68995967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100678 + ... + 101360.

It is an arithmetic number, because the mean of its divisors is an integer number (5822208).

Almost surely, 2^68995977 is an apocalyptic number.

It is an amenable number.

68995977 is a deficient number, since it is larger than the sum of its proper divisors (24159351).

68995977 is a wasteful number, since it uses less digits than its factorization.

68995977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its digits is 8573040, while the sum is 60.

The square root of 68995977 is about 8306.3817032448. The cubic root of 68995977 is about 410.1486215111.

The spelling of 68995977 in words is "sixty-eight million, nine hundred ninety-five thousand, nine hundred seventy-seven".