40067617 has 2 divisors, whose sum is σ = 40067618. Its totient is φ = 40067616.

The previous prime is 40067603. The next prime is 40067681. The reversal of 40067617 is 71676004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39237696 + 829921 = 6264^2 + 911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40067617 is a prime.

It is not a weakly prime, because it can be changed into another prime (40067017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033808 + 20033809.

It is an arithmetic number, because the mean of its divisors is an integer number (20033809).

Almost surely, 2^40067617 is an apocalyptic number.

It is an amenable number.

40067617 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067617 is an equidigital number, since it uses as much as digits as its factorization.

40067617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40067617 is about 6329.8986563767. The cubic root of 40067617 is about 342.1877865916.

The spelling of 40067617 in words is "forty million, sixty-seven thousand, six hundred seventeen".