4720451 has 4 divisors (see below), whose sum is σ = 4925712. Its totient is φ = 4515192.

The previous prime is 4720433. The next prime is 4720477. The reversal of 4720451 is 1540274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4720451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 205237 = 4720451 / (4 + 7 + 2 + 0 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4720481) 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, 102596 + ... + 102641.

It is an arithmetic number, because the mean of its divisors is an integer number (1231428).

Almost surely, 2^4720451 is an apocalyptic number.

4720451 is a deficient number, since it is larger than the sum of its proper divisors (205261).

4720451 is a wasteful number, since it uses less digits than its factorization.

4720451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205260.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4720451 is about 2172.6598905489. The cubic root of 4720451 is about 167.7494730583.

The spelling of 4720451 in words is "four million, seven hundred twenty thousand, four hundred fifty-one".