68031406 has 4 divisors (see below), whose sum is σ = 102047112. Its totient is φ = 34015702.

The previous prime is 68031373. The next prime is 68031421. The reversal of 68031406 is 60413086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60413086 = 2 ⋅30206543.

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, 17007850 + ... + 17007853.

It is an arithmetic number, because the mean of its divisors is an integer number (25511778).

Almost surely, 2^68031406 is an apocalyptic number.

68031406 is a deficient number, since it is larger than the sum of its proper divisors (34015706).

68031406 is a wasteful number, since it uses less digits than its factorization.

68031406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34015705.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 68031406 is about 8248.1152998731. The cubic root of 68031406 is about 408.2283380008.

The spelling of 68031406 in words is "sixty-eight million, thirty-one thousand, four hundred six".