4687640 has 16 divisors (see below), whose sum is σ = 10547280. Its totient is φ = 1875040.

The previous prime is 4687637. The next prime is 4687643. The reversal of 4687640 is 467864.

It is an interprime number because it is at equal distance from previous prime (4687637) and next prime (4687643).

It is a self number, because there is not a number n which added to its sum of digits gives 4687640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4687643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58556 + ... + 58635.

It is an arithmetic number, because the mean of its divisors is an integer number (659205).

Almost surely, 2^4687640 is an apocalyptic number.

4687640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4687640 is an abundant number, since it is smaller than the sum of its proper divisors (5859640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4687640 is a wasteful number, since it uses less digits than its factorization.

4687640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117202 (or 117198 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 4687640 is about 2165.0958408348. The cubic root of 4687640 is about 167.3599036482.

The spelling of 4687640 in words is "four million, six hundred eighty-seven thousand, six hundred forty".