67316407 has 4 divisors (see below), whose sum is σ = 69487936. Its totient is φ = 65144880.

The previous prime is 67316393. The next prime is 67316437. The reversal of 67316407 is 70461376.

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

It is a cyclic number.

It is not a de Polignac number, because 67316407 - 2¹⁵ = 67283639 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 (67316437) 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, 1085718 + ... + 1085779.

It is an arithmetic number, because the mean of its divisors is an integer number (17371984).

Almost surely, 2^67316407 is an apocalyptic number.

67316407 is a deficient number, since it is larger than the sum of its proper divisors (2171529).

67316407 is a wasteful number, since it uses less digits than its factorization.

67316407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171528.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 67316407 is about 8204.6576406332. The cubic root of 67316407 is about 406.7931605812.

The spelling of 67316407 in words is "sixty-seven million, three hundred sixteen thousand, four hundred seven".