68574019 has 4 divisors (see below), whose sum is σ = 69400296. Its totient is φ = 67747744.

The previous prime is 68573993. The next prime is 68574029. The reversal of 68574019 is 91047586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68574019 is a prime.

It is a super-2 number, since 2×68574019² = 9404792163624722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68574029) 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, 413014 + ... + 413179.

It is an arithmetic number, because the mean of its divisors is an integer number (17350074).

Almost surely, 2^68574019 is an apocalyptic number.

68574019 is a deficient number, since it is larger than the sum of its proper divisors (826277).

68574019 is an equidigital number, since it uses as much as digits as its factorization.

68574019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826276.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 68574019 is about 8280.9431226159. The cubic root of 68574019 is about 409.3107972971.

The spelling of 68574019 in words is "sixty-eight million, five hundred seventy-four thousand, nineteen".