67340739 has 4 divisors (see below), whose sum is σ = 89787656. Its totient is φ = 44893824.

The previous prime is 67340729. The next prime is 67340759. The reversal of 67340739 is 93704376.

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

It is not a de Polignac number, because 67340739 - 2⁹ = 67340227 is a prime.

It is a super-2 number, since 2×67340739² = 9069550258132242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67340697 and 67340706.

It is not an unprimeable number, because it can be changed into a prime (67340719) 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, 11223454 + ... + 11223459.

It is an arithmetic number, because the mean of its divisors is an integer number (22446914).

Almost surely, 2^67340739 is an apocalyptic number.

67340739 is a deficient number, since it is larger than the sum of its proper divisors (22446917).

67340739 is a wasteful number, since it uses less digits than its factorization.

67340739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446916.

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 67340739 is about 8206.1403229533. The cubic root of 67340739 is about 406.8421674494.

The spelling of 67340739 in words is "sixty-seven million, three hundred forty thousand, seven hundred thirty-nine".