4727640 has 32 divisors (see below), whose sum is σ = 14183280. Its totient is φ = 1260672.

The previous prime is 4727633. The next prime is 4727641. The reversal of 4727640 is 467274.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4727598 and 4727607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4727641) 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, 19579 + ... + 19818.

Almost surely, 2^4727640 is an apocalyptic number.

4727640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4727640 is an abundant number, since it is smaller than the sum of its proper divisors (9455640).

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

4727640 is a wasteful number, since it uses less digits than its factorization.

4727640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39411 (or 39407 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 4727640 is about 2174.3136848210. The cubic root of 4727640 is about 167.8345877560.

The spelling of 4727640 in words is "four million, seven hundred twenty-seven thousand, six hundred forty".