4978550 has 12 divisors (see below), whose sum is σ = 9260196. Its totient is φ = 1991400.

The previous prime is 4978543. The next prime is 4978553. The reversal of 4978550 is 558794.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49736 + ... + 49835.

It is an arithmetic number, because the mean of its divisors is an integer number (771683).

Almost surely, 2^4978550 is an apocalyptic number.

4978550 is a deficient number, since it is larger than the sum of its proper divisors (4281646).

4978550 is a wasteful number, since it uses less digits than its factorization.

4978550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99583 (or 99578 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 4978550 is about 2231.2664565219. The cubic root of 4978550 is about 170.7527175985.

The spelling of 4978550 in words is "four million, nine hundred seventy-eight thousand, five hundred fifty".