40687601 has 2 divisors, whose sum is σ = 40687602. Its totient is φ = 40687600.

The previous prime is 40687553. The next prime is 40687627. The reversal of 40687601 is 10678604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40653376 + 34225 = 6376^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 40687601 - 2¹⁴ = 40671217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40687201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20343800 + 20343801.

It is an arithmetic number, because the mean of its divisors is an integer number (20343801).

Almost surely, 2^40687601 is an apocalyptic number.

It is an amenable number.

40687601 is a deficient number, since it is larger than the sum of its proper divisors (1).

40687601 is an equidigital number, since it uses as much as digits as its factorization.

40687601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 40687601 is about 6378.6833280858. The cubic root of 40687601 is about 343.9437019146.

The spelling of 40687601 in words is "forty million, six hundred eighty-seven thousand, six hundred one".