99291946 has 16 divisors (see below), whose sum is σ = 165570048. Its totient is φ = 44348400.

The previous prime is 99291937. The next prime is 99291947. The reversal of 99291946 is 64919299.

It is a self number, because there is not a number n which added to its sum of digits gives 99291946.

It is not an unprimeable number, because it can be changed into a prime (99291947) 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, 60790 + ... + 62401.

It is an arithmetic number, because the mean of its divisors is an integer number (10348128).

Almost surely, 2^99291946 is an apocalyptic number.

99291946 is a deficient number, since it is larger than the sum of its proper divisors (66278102).

99291946 is a wasteful number, since it uses less digits than its factorization.

99291946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123237.

The product of its digits is 314928, while the sum is 49.

The square root of 99291946 is about 9964.5344095949. The cubic root of 99291946 is about 463.0607890553.

The spelling of 99291946 in words is "ninety-nine million, two hundred ninety-one thousand, nine hundred forty-six".