4899621 has 16 divisors (see below), whose sum is σ = 7219584. Its totient is φ = 2939904.

The previous prime is 4899619. The next prime is 4899641. The reversal of 4899621 is 1269984.

It is not a de Polignac number, because 4899621 - 2¹ = 4899619 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4899621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4899641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916 + ... + 3261.

It is an arithmetic number, because the mean of its divisors is an integer number (451224).

Almost surely, 2^4899621 is an apocalyptic number.

It is an amenable number.

4899621 is a deficient number, since it is larger than the sum of its proper divisors (2319963).

4899621 is a wasteful number, since it uses less digits than its factorization.

4899621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its digits is 31104, while the sum is 39.

The square root of 4899621 is about 2213.5087530886. The cubic root of 4899621 is about 169.8455459873.

The spelling of 4899621 in words is "four million, eight hundred ninety-nine thousand, six hundred twenty-one".