9472703921 has 2 divisors, whose sum is σ = 9472703922. Its totient is φ = 9472703920.

The previous prime is 9472703887. The next prime is 9472703951. The reversal of 9472703921 is 1293072749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6525408400 + 2947295521 = 80780^2 + 54289^2 .

It is an emirp because it is prime and its reverse (1293072749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9472703921 - 2⁶ = 9472703857 is a prime.

It is a super-3 number, since 3×9472703921³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9472703951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4736351960 + 4736351961.

It is an arithmetic number, because the mean of its divisors is an integer number (4736351961).

Almost surely, 2^9472703921 is an apocalyptic number.

It is an amenable number.

9472703921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9472703921 is an equidigital number, since it uses as much as digits as its factorization.

9472703921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 9472703921 is about 97327.8167894462. The cubic root of 9472703921 is about 2115.8814010838.

The spelling of 9472703921 in words is "nine billion, four hundred seventy-two million, seven hundred three thousand, nine hundred twenty-one".