68707790 has 8 divisors (see below), whose sum is σ = 123674040. Its totient is φ = 27483112.

The previous prime is 68707789. The next prime is 68707813. The reversal of 68707790 is 9770786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3435380 + ... + 3435399.

It is an arithmetic number, because the mean of its divisors is an integer number (15459255).

Almost surely, 2^68707790 is an apocalyptic number.

68707790 is a deficient number, since it is larger than the sum of its proper divisors (54966250).

68707790 is a wasteful number, since it uses less digits than its factorization.

68707790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870786.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 68707790 is about 8289.0162263082. The cubic root of 68707790 is about 409.5767792253.

The spelling of 68707790 in words is "sixty-eight million, seven hundred seven thousand, seven hundred ninety".