9354747021 has 16 divisors (see below), whose sum is σ = 12542054400. Its totient is φ = 6202001520.

The previous prime is 9354746993. The next prime is 9354747043. The reversal of 9354747021 is 1207474539.

It is not a de Polignac number, because 9354747021 - 2¹⁹ = 9354222733 is a prime.

It is a super-2 number, since 2×9354747021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9354747091) 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, 2093836 + ... + 2098298.

It is an arithmetic number, because the mean of its divisors is an integer number (783878400).

Almost surely, 2^9354747021 is an apocalyptic number.

It is an amenable number.

9354747021 is a deficient number, since it is larger than the sum of its proper divisors (3187307379).

9354747021 is a wasteful number, since it uses less digits than its factorization.

9354747021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 9354747021 is about 96719.9411755404. The cubic root of 9354747021 is about 2107.0621663913.

The spelling of 9354747021 in words is "nine billion, three hundred fifty-four million, seven hundred forty-seven thousand, twenty-one".