9952091 has 4 divisors (see below), whose sum is σ = 10024872. Its totient is φ = 9879312.

The previous prime is 9952087. The next prime is 9952093. The reversal of 9952091 is 1902599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9952091 - 2² = 9952087 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9952093) 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, 36185 + ... + 36458.

It is an arithmetic number, because the mean of its divisors is an integer number (2506218).

Almost surely, 2^9952091 is an apocalyptic number.

9952091 is a deficient number, since it is larger than the sum of its proper divisors (72781).

9952091 is a wasteful number, since it uses less digits than its factorization.

9952091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72780.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 9952091 is about 3154.6934874881. The cubic root of 9952091 is about 215.0988620515.

The spelling of 9952091 in words is "nine million, nine hundred fifty-two thousand, ninety-one".