67340691 has 12 divisors (see below), whose sum is σ = 106112760. Its totient is φ = 40812480.

The previous prime is 67340683. The next prime is 67340719. The reversal of 67340691 is 19604376.

It is not a de Polignac number, because 67340691 - 2³ = 67340683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67340641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340006 + ... + 340203.

It is an arithmetic number, because the mean of its divisors is an integer number (8842730).

Almost surely, 2^67340691 is an apocalyptic number.

67340691 is a deficient number, since it is larger than the sum of its proper divisors (38772069).

67340691 is a wasteful number, since it uses less digits than its factorization.

67340691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680226 (or 680223 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 67340691 is about 8206.1373983135. The cubic root of 67340691 is about 406.8420707846.

The spelling of 67340691 in words is "sixty-seven million, three hundred forty thousand, six hundred ninety-one".