9220698731 has 16 divisors (see below), whose sum is σ = 10006905888. Its totient is φ = 8461824000.

The previous prime is 9220698719. The next prime is 9220698737. The reversal of 9220698731 is 1378960229.

It is a happy number.

9220698731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9220698731 - 2⁶ = 9220698667 is a prime.

It is a super-2 number, since 2×9220698731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9220698737) 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, 1949936 + ... + 1954658.

It is an arithmetic number, because the mean of its divisors is an integer number (625431618).

Almost surely, 2^9220698731 is an apocalyptic number.

9220698731 is a deficient number, since it is larger than the sum of its proper divisors (786207157).

9220698731 is a wasteful number, since it uses less digits than its factorization.

9220698731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7582.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 9220698731 is about 96024.4694387842. The cubic root of 9220698731 is about 2096.9493672958.

The spelling of 9220698731 in words is "nine billion, two hundred twenty million, six hundred ninety-eight thousand, seven hundred thirty-one".