68574279 has 8 divisors (see below), whose sum is σ = 91832560. Its totient is φ = 45516096.

The previous prime is 68574271. The next prime is 68574281. The reversal of 68574279 is 97247586.

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

It is not a de Polignac number, because 68574279 - 2³ = 68574271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68574271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49222 + ... + 50595.

It is an arithmetic number, because the mean of its divisors is an integer number (11479070).

Almost surely, 2^68574279 is an apocalyptic number.

68574279 is a deficient number, since it is larger than the sum of its proper divisors (23258281).

68574279 is a wasteful number, since it uses less digits than its factorization.

68574279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100049.

The product of its digits is 846720, while the sum is 48.

The square root of 68574279 is about 8280.9588212960. The cubic root of 68574279 is about 409.3113146003.

The spelling of 68574279 in words is "sixty-eight million, five hundred seventy-four thousand, two hundred seventy-nine".