68197406 has 4 divisors (see below), whose sum is σ = 102296112. Its totient is φ = 34098702.

The previous prime is 68197399. The next prime is 68197429. The reversal of 68197406 is 60479186.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17049350 + ... + 17049353.

It is an arithmetic number, because the mean of its divisors is an integer number (25574028).

Almost surely, 2^68197406 is an apocalyptic number.

68197406 is a deficient number, since it is larger than the sum of its proper divisors (34098706).

68197406 is a wasteful number, since it uses less digits than its factorization.

68197406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34098705.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 68197406 is about 8258.1720737703. The cubic root of 68197406 is about 408.5601007620.

The spelling of 68197406 in words is "sixty-eight million, one hundred ninety-seven thousand, four hundred six".