4640787 has 8 divisors (see below), whose sum is σ = 6875280. Its totient is φ = 3093840.

The previous prime is 4640777. The next prime is 4640789. The reversal of 4640787 is 7870464.

It is a happy number.

4640787 is a `hidden beast` number, since 4 + 640 + 7 + 8 + 7 = 666.

It is not a de Polignac number, because 4640787 - 2⁶ = 4640723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4640789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85914 + ... + 85967.

It is an arithmetic number, because the mean of its divisors is an integer number (859410).

Almost surely, 2^4640787 is an apocalyptic number.

4640787 is a deficient number, since it is larger than the sum of its proper divisors (2234493).

4640787 is a wasteful number, since it uses less digits than its factorization.

4640787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171890 (or 171884 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 4640787 is about 2154.2485928973. The cubic root of 4640787 is about 166.8004476982.

The spelling of 4640787 in words is "four million, six hundred forty thousand, seven hundred eighty-seven".