99156947 has 8 divisors (see below), whose sum is σ = 100465200. Its totient is φ = 97853184.

The previous prime is 99156919. The next prime is 99157001. The reversal of 99156947 is 74965199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99156947 - 2¹⁴ = 99140563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99156895 and 99156904.

It is not an unprimeable number, because it can be changed into a prime (99156907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75803 + ... + 77099.

It is an arithmetic number, because the mean of its divisors is an integer number (12558150).

Almost surely, 2^99156947 is an apocalyptic number.

99156947 is a deficient number, since it is larger than the sum of its proper divisors (1308253).

99156947 is a wasteful number, since it uses less digits than its factorization.

99156947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245.

The product of its digits is 612360, while the sum is 50.

The square root of 99156947 is about 9957.7581312261. The cubic root of 99156947 is about 462.8508321269.

The spelling of 99156947 in words is "ninety-nine million, one hundred fifty-six thousand, nine hundred forty-seven".