99373971 has 16 divisors (see below), whose sum is σ = 143244800. Its totient is φ = 61064928.

The previous prime is 99373969. The next prime is 99373973. The reversal of 99373971 is 17937399.

It is an interprime number because it is at equal distance from previous prime (99373969) and next prime (99373973).

It is not a de Polignac number, because 99373971 - 2¹ = 99373969 is a prime.

It is a super-2 number, since 2×99373971² = 19750372224617682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99373971.

It is not an unprimeable number, because it can be changed into a prime (99373973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21451 + ... + 25668.

It is an arithmetic number, because the mean of its divisors is an integer number (8952800).

Almost surely, 2^99373971 is an apocalyptic number.

99373971 is a deficient number, since it is larger than the sum of its proper divisors (43870829).

99373971 is a wasteful number, since it uses less digits than its factorization.

99373971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47178.

The product of its digits is 321489, while the sum is 48.

The square root of 99373971 is about 9968.6494070160. The cubic root of 99373971 is about 463.1882653459.

The spelling of 99373971 in words is "ninety-nine million, three hundred seventy-three thousand, nine hundred seventy-one".