4640487 has 8 divisors (see below), whose sum is σ = 6279936. Its totient is φ = 3047352.

The previous prime is 4640479. The next prime is 4640491. The reversal of 4640487 is 7840464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4640487 - 2³ = 4640479 is a prime.

4640487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640417) 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, 11343 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (784992).

Almost surely, 2^4640487 is an apocalyptic number.

4640487 is a deficient number, since it is larger than the sum of its proper divisors (1639449).

4640487 is a wasteful number, since it uses less digits than its factorization.

4640487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23157.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 4640487 is about 2154.1789619249. The cubic root of 4640487 is about 166.7968533931.

The spelling of 4640487 in words is "four million, six hundred forty thousand, four hundred eighty-seven".