9720436 has 12 divisors (see below), whose sum is σ = 18557280. Its totient is φ = 4418360.

The previous prime is 9720433. The next prime is 9720437. The reversal of 9720436 is 6340279.

It is a junction number, because it is equal to n+sod(n) for n = 9720398 and 9720407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720433) 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, 110416 + ... + 110503.

It is an arithmetic number, because the mean of its divisors is an integer number (1546440).

Almost surely, 2^9720436 is an apocalyptic number.

It is an amenable number.

9720436 is a deficient number, since it is larger than the sum of its proper divisors (8836844).

9720436 is a wasteful number, since it uses less digits than its factorization.

9720436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220934 (or 220932 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 9720436 is about 3117.7613763725. The cubic root of 9720436 is about 213.4167891795.

The spelling of 9720436 in words is "nine million, seven hundred twenty thousand, four hundred thirty-six".