4721355 has 32 divisors (see below), whose sum is σ = 8608320. Its totient is φ = 2453760.

The previous prime is 4721351. The next prime is 4721369. The reversal of 4721355 is 5531274.

It is a happy number.

It is not a de Polignac number, because 4721355 - 2² = 4721351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

4721355 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4721351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5109 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (269010).

Almost surely, 2^4721355 is an apocalyptic number.

4721355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4721355 is a deficient number, since it is larger than the sum of its proper divisors (3886965).

4721355 is a wasteful number, since it uses less digits than its factorization.

4721355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 4721355 is about 2172.8679205143. The cubic root of 4721355 is about 167.7601807813.

The spelling of 4721355 in words is "four million, seven hundred twenty-one thousand, three hundred fifty-five".