9972436 has 6 divisors (see below), whose sum is σ = 17451770. Its totient is φ = 4986216.

The previous prime is 9972401. The next prime is 9972439. The reversal of 9972436 is 6342799.

It can be written as a sum of positive squares in only one way, i.e., 9960336 + 12100 = 3156^2 + 110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246551 + ... + 1246558.

Almost surely, 2^9972436 is an apocalyptic number.

It is an amenable number.

9972436 is a deficient number, since it is larger than the sum of its proper divisors (7479334).

9972436 is a wasteful number, since it uses less digits than its factorization.

9972436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493113 (or 2493111 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 9972436 is about 3157.9164016801. The cubic root of 9972436 is about 215.2453373889.

The spelling of 9972436 in words is "nine million, nine hundred seventy-two thousand, four hundred thirty-six".