99715237 has 4 divisors (see below), whose sum is σ = 102034240. Its totient is φ = 97396236.

The previous prime is 99715201. The next prime is 99715283. The reversal of 99715237 is 73251799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99715237 - 2¹⁵ = 99682469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2318959 = 99715237 / (9 + 9 + 7 + 1 + 5 + 2 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99715193 and 99715202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99715337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159437 + ... + 1159522.

It is an arithmetic number, because the mean of its divisors is an integer number (25508560).

Almost surely, 2^99715237 is an apocalyptic number.

It is an amenable number.

99715237 is a deficient number, since it is larger than the sum of its proper divisors (2319003).

99715237 is a wasteful number, since it uses less digits than its factorization.

99715237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319002.

The product of its digits is 119070, while the sum is 43.

The square root of 99715237 is about 9985.7516992964. The cubic root of 99715237 is about 463.7178802378.

The spelling of 99715237 in words is "ninety-nine million, seven hundred fifteen thousand, two hundred thirty-seven".