40887747 has 10 divisors (see below), whose sum is σ = 61079348. Its totient is φ = 27258444.

The previous prime is 40887739. The next prime is 40887761. The reversal of 40887747 is 74778804.

It is not a de Polignac number, because 40887747 - 2³ = 40887739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40887247) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 252313 + ... + 252474.

Almost surely, 2^40887747 is an apocalyptic number.

40887747 is a deficient number, since it is larger than the sum of its proper divisors (20191601).

40887747 is an equidigital number, since it uses as much as digits as its factorization.

40887747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504799 (or 504790 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 40887747 is about 6394.3527428505. The cubic root of 40887747 is about 344.5067431270.

The spelling of 40887747 in words is "forty million, eight hundred eighty-seven thousand, seven hundred forty-seven".