4989870 has 32 divisors (see below), whose sum is σ = 13307040. Its totient is φ = 1330560.

The previous prime is 4989863. The next prime is 4989917. The reversal of 4989870 is 789894.

4989870 is a `hidden beast` number, since 498 + 98 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8971 + ... + 9510.

It is an arithmetic number, because the mean of its divisors is an integer number (415845).

Almost surely, 2^4989870 is an apocalyptic number.

4989870 is an abundant number, since it is smaller than the sum of its proper divisors (8317170).

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

4989870 is a wasteful number, since it uses less digits than its factorization.

4989870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497 (or 18491 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4989870 is about 2233.8016921831. The cubic root of 4989870 is about 170.8820362164.

The spelling of 4989870 in words is "four million, nine hundred eighty-nine thousand, eight hundred seventy".