40207487 has 2 divisors, whose sum is σ = 40207488. Its totient is φ = 40207486.

The previous prime is 40207481. The next prime is 40207507. The reversal of 40207487 is 78470204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40207487 - 2⁴ = 40207471 is a prime.

It is a super-3 number, since 3×40207487³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40207481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20103743 + 20103744.

It is an arithmetic number, because the mean of its divisors is an integer number (20103744).

Almost surely, 2^40207487 is an apocalyptic number.

40207487 is a deficient number, since it is larger than the sum of its proper divisors (1).

40207487 is an equidigital number, since it uses as much as digits as its factorization.

40207487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 40207487 is about 6340.9373912695. The cubic root of 40207487 is about 342.5854994603.

The spelling of 40207487 in words is "forty million, two hundred seven thousand, four hundred eighty-seven".