4688890 has 8 divisors (see below), whose sum is σ = 8440020. Its totient is φ = 1875552.

The previous prime is 4688867. The next prime is 4688897. The reversal of 4688890 is 988864.

It can be written as a sum of positive squares in 2 ways, for example, as 4575321 + 113569 = 2139^2 + 337^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4688897) 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, 234435 + ... + 234454.

Almost surely, 2^4688890 is an apocalyptic number.

4688890 is a deficient number, since it is larger than the sum of its proper divisors (3751130).

4688890 is a wasteful number, since it uses less digits than its factorization.

4688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468896.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 4688890 is about 2165.3844924170. The cubic root of 4688890 is about 167.3747783177.

The spelling of 4688890 in words is "four million, six hundred eighty-eight thousand, eight hundred ninety".