207040987 has 2 divisors, whose sum is σ = 207040988. Its totient is φ = 207040986.

The previous prime is 207040979. The next prime is 207041053. The reversal of 207040987 is 789040702.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 207040987 - 2³ = 207040979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (207040907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103520493 + 103520494.

It is an arithmetic number, because the mean of its divisors is an integer number (103520494).

Almost surely, 2^207040987 is an apocalyptic number.

207040987 is a deficient number, since it is larger than the sum of its proper divisors (1).

207040987 is an equidigital number, since it uses as much as digits as its factorization.

207040987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 207040987 is about 14388.9188961506. The cubic root of 207040987 is about 591.5872105252.

The spelling of 207040987 in words is "two hundred seven million, forty thousand, nine hundred eighty-seven".