68190970 has 8 divisors (see below), whose sum is σ = 122743764. Its totient is φ = 27276384.

The previous prime is 68190949. The next prime is 68190971. The reversal of 68190970 is 7909186.

It can be written as a sum of positive squares in 2 ways, for example, as 68112009 + 78961 = 8253^2 + 281^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68190971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409539 + ... + 3409558.

Almost surely, 2^68190970 is an apocalyptic number.

68190970 is a deficient number, since it is larger than the sum of its proper divisors (54552794).

68190970 is a wasteful number, since it uses less digits than its factorization.

68190970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819104.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 68190970 is about 8257.7823899640. The cubic root of 68190970 is about 408.5472479978.

The spelling of 68190970 in words is "sixty-eight million, one hundred ninety thousand, nine hundred seventy".