8972109 has 12 divisors (see below), whose sum is σ = 13124800. Its totient is φ = 5905224.

The previous prime is 8972101. The next prime is 8972129. The reversal of 8972109 is 9012798.

It is a happy number.

8972109 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8972109 - 2³ = 8972101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5599 + ... + 7020.

Almost surely, 2^8972109 is an apocalyptic number.

It is an amenable number.

8972109 is a deficient number, since it is larger than the sum of its proper divisors (4152691).

8972109 is a wasteful number, since it uses less digits than its factorization.

8972109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704 (or 12701 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 8972109 is about 2995.3478929834. The cubic root of 8972109 is about 207.7932872999.

The spelling of 8972109 in words is "eight million, nine hundred seventy-two thousand, one hundred nine".