1472748821 has 2 divisors, whose sum is σ = 1472748822. Its totient is φ = 1472748820.

The previous prime is 1472748787. The next prime is 1472748917. The reversal of 1472748821 is 1288472741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1403626225 + 69122596 = 37465^2 + 8314^2 .

It is a cyclic number.

It is not a de Polignac number, because 1472748821 - 2⁶ = 1472748757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472744821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736374410 + 736374411.

It is an arithmetic number, because the mean of its divisors is an integer number (736374411).

Almost surely, 2^1472748821 is an apocalyptic number.

It is an amenable number.

1472748821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472748821 is an equidigital number, since it uses as much as digits as its factorization.

1472748821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 44.

The square root of 1472748821 is about 38376.4096939774. The cubic root of 1472748821 is about 1137.7396530195.

The spelling of 1472748821 in words is "one billion, four hundred seventy-two million, seven hundred forty-eight thousand, eight hundred twenty-one".